L. David Baron
12c8120dc8
Bug 804970, patch 5: Handle dynamic changes to the basis for 'rem' units by rebuilding all style data. r=bzbarsky
2012-10-26 19:04:20 +02:00
L. David Baron
0fac8d37bf
Bug 804970, patch 3: Don't force vw/vh/vmin/vmax units out of the rule tree. r=bzbarsky
2012-10-26 19:04:20 +02:00
L. David Baron
26b86aa5e3
Bug 804970, patch 1: Don't force calc() units out of the rule tree. r=bzbarsky
...
This moves the calc() handling above the aCanStoreInRuleTree = false,
which it had no reason to be below.
calc() units are still forced out of the rule tree when there's an em,
ex, or rem unit inside the calc() structure, since aCanStoreInRuleTree
is passed through to the leaf CalcLengthWith calls.
2012-10-26 19:04:20 +02:00
Jonathan Kew
fcf46d88fe
bug 804644 - convert Cocoa points to _un_scaled device pixels for system font sizes. r=roc
2012-10-23 21:09:23 +01:00
Seth Fowler
ed0c222ddd
Bug 503720: Implement vw/vh/vmin/vmax. r=dbaron
2012-10-19 16:21:06 -07:00
L. David Baron
58405dbcaf
Bug 823124: Add diagnostic (and otherwise good-to-have) assertion that non-root rule nodes must have a non-null rule (and vice-versa).
2012-12-21 14:36:53 -05:00
Cameron McCormack
154f38b92a
Bug 793617 - Implement mask-type property. r=dbaron,longsonr
2012-12-21 11:15:22 +11:00
Yu-Sian (Thomasy) Liu
e7b15a81a9
Bug 594935: Add calc to parser, do calc in PaintGradient and add stop point to HasCalc(). r=bz
2012-10-03 22:31:56 -07:00
Jonathan Kew
ed41d7aef7
bug 674373 pt 4 - pass device-to-CSS pixel ratio to LookAndFeel code when requesting a font style. r=roc
2012-09-29 12:35:08 +01:00
Edwin Flores
3c306b446c
Bug 719286 - Add support for -moz-objectValue keyword to CSS parser for SVG glyphs r=dbaron
2012-09-06 16:58:47 +12:00
Edwin Flores
f5a2675bcf
Bug 719286 - Add support for -moz-objectFillOpacity and -moz-objectStrokeOpacity to CSS parser for SVG glyphs r=dbaron
2012-09-06 16:58:46 +12:00
Edwin Flores
4e81980066
Bug 719286 - Add support for objectfill and objectstroke values to CSS parser r=dbaron
2012-09-06 16:58:46 +12:00
Daniel Holbert
c62fdc18d3
Bug 763689 patch 3: Support min-height:auto in computed style, and add special cases as necessary wherever it's read. r=dbaron
2012-09-04 16:26:11 -07:00
Daniel Holbert
bb17bc6aff
Bug 763689 patch 2: Support min-width:auto in computed style, and add special cases as necessary wherever it's read. r=dbaron
2012-09-04 16:26:10 -07:00
Kyle Huey
8443a7a8f1
Bug 783162: Make mapped attributes hold the image alive. r=bz
...
The nsCSSValue in nsGenericHTMLElement::MapBackgroundInto is a temporary. This causes a problem after Bug 697230 landed, because the nsCSSValue::Image we put into that value is destroyed once we're done doing style stuff. Previously the nsImageLoader would grab the request off the nsCSSValue::Image and hold it alive. Bug 697230 changed the behavior here; now when the nsCSSValue::Image is destroyed it tells the image loader to drop the request. The result is that all the references to the request are dropped and the frame is never told it has a background.
The solution is to keep the nsCSSValue::Image alive longer. This patch adds two new types of nsAttrValue. The first is an nsCSSValue::URL. A ParseBackgroundAttribute method is added on nsGenericHTMLElement that the relevant elements (body/td/th/table/tr/tbody/thead/tfoot) call that parses background into an nsCSSValue::URL. The second is an nsCSSValue::Image. nsGenericHTMLElement::MapBackgroundInto attempts to convert the nsCSSValue::URL into an nsCSSValue::Image by kicking off the image load. The result is that image loads are only started when the element is actually visible. This also mirrors the way background-image works. This also allows us to fix two longstanding bugs in this code. Since MapBackgroundInto doesn't have a pointer to the actual element, it relied on grabbing the principal of the document. Now we can grab the principal of the node in ParseBackgroundAttribute. MapBackgroundInto also has no way to get at the element's base URI (to honor xml:base), which is now possible in ParseBackgroundAttribute.
nsCSSValue::[Image|URL] have also been moved to be mozilla::css::[Image|URL]Value. nsAttrValue.h is included in external linkage code, so it can't include nsCSSValue.h to get the declarations of nsCSSValue::[Image|URL], and nested classes can't be forward declared. Moving the classes to a namespace solves the problem.
Finally some old inoperative quirks mode code was removed. This code has done nothing since Bug 273078 was landed in 2004.
2012-08-24 10:50:49 -07:00
Ehsan Akhgari
e368dc9c85
Bug 579517 - Part 1: Automated conversion of NSPR numeric types to stdint types in Gecko; r=bsmedberg
...
This patch was generated by a script. Here's the source of the script for
future reference:
function convert() {
echo "Converting $1 to $2..."
find . ! -wholename "*nsprpub*" \
! -wholename "*security/nss*" \
! -wholename "*/.hg*" \
! -wholename "obj-ff-dbg*" \
! -name nsXPCOMCID.h \
! -name prtypes.h \
-type f \
\( -iname "*.cpp" \
-o -iname "*.h" \
-o -iname "*.c" \
-o -iname "*.cc" \
-o -iname "*.idl" \
-o -iname "*.ipdl" \
-o -iname "*.ipdlh" \
-o -iname "*.mm" \) | \
xargs -n 1 sed -i -e "s/\b$1\b/$2/g"
}
convert PRInt8 int8_t
convert PRUint8 uint8_t
convert PRInt16 int16_t
convert PRUint16 uint16_t
convert PRInt32 int32_t
convert PRUint32 uint32_t
convert PRInt64 int64_t
convert PRUint64 uint64_t
convert PRIntn int
convert PRUintn unsigned
convert PRSize size_t
convert PROffset32 int32_t
convert PROffset64 int64_t
convert PRPtrdiff ptrdiff_t
convert PRFloat64 double
2012-08-22 11:56:38 -04:00
L. David Baron
31b5c3639b
Track whether nsStyleVisibility::mLanguage came from explicit information in the document. (Bug 702121, patch 1) r=jfkthame
2012-08-20 19:23:32 -07:00
Kyle Huey
2e07e6f8c2
Bug 697230: Part 1 - Centralize style image observers. r=bz
2012-08-13 15:04:19 -07:00
Jonathan Kew
22fe279335
bug 721750 - support text-shadow property on ::-moz-selection. r=dbaron
2012-08-04 19:52:21 +01:00
Cameron McCormack
5e22f14219
Bug 655877 - Part 15: Don't treat SVG text frames as being positioned. r=roc
2012-08-02 21:38:50 +10:00
Scott Johnson
63993f05d9
Bug 764567: Implement column-fill part of CSS3 multicol spec, now with regression fixes [r=roc].
2012-07-31 11:21:19 -05:00
Aryeh Gregor
d0ad5a7d0c
Bug 777292 part 2 - Change all nsnull to nullptr
2012-07-30 17:20:58 +03:00
Cameron McCormack
803f9f3bf4
Bug 774968 - line-height percentage value not computed accurately. r=dbaron
...
--HG--
extra : rebase_source : 93885c1b2ef72d673a935c135f89cc06bc58136d
2012-07-20 07:03:35 +10:00
Boris Zbarsky
496f1a1325
Bug 771594. Allow preference control over what CSS properties we parse. r=dbaron,dholbert
2012-07-13 19:59:05 -04:00
Masatoshi Kimura
85d5ae2b8f
Bug 752187 - Part 10: Implement rendering unprefixed gradients. r=dbaron
2012-07-07 10:27:08 -04:00
Masatoshi Kimura
2a19870d92
Bug 752187 - Part 9: Implement unprefixed radial-gradient parsing. r=dbaron
2012-07-07 10:27:08 -04:00
Masatoshi Kimura
63ae4a505b
Bug 752187 - Part 6: Rename mIsToCorner to mIsLegacySyntax. r=dbaron
2012-07-07 10:27:08 -04:00
Daniel Holbert
131f2b5d0d
Bug 696253, patch 7: implement parsing/computation for CSS property 'flex-basis'. r=dbaron
2012-07-06 17:06:23 -07:00
Daniel Holbert
c7782ae98e
Bug 696253, patch 6: implement parsing/computation for CSS properties 'flex-grow' and 'flex-shrink'. r=dbaron
2012-07-06 17:06:22 -07:00
Daniel Holbert
0dd40b90f7
Bug 696253, patch 5: implement parsing/computation for CSS property 'align-self'. r=dbaron
2012-07-06 17:06:21 -07:00
Daniel Holbert
85e8349a15
Bug 696253, patch 4: implement parsing/computation for CSS property 'align-items'. r=dbaron
2012-07-06 17:06:21 -07:00
Daniel Holbert
9e077e40c9
Bug 696253, patch 3: implement parsing/computation for CSS property 'flex-direction'. r=dbaron
2012-07-06 17:06:20 -07:00
Daniel Holbert
4fe6be60d1
Bug 696253, patch 2: implement parsing/computation for CSS property 'order'. r=dbaron
2012-07-06 17:06:19 -07:00
Daniel Holbert
e193caf93a
Bug 696253, patch 1: implement parsing/computation for CSS property 'justify-content'. r=dbaron
2012-07-06 17:06:19 -07:00
Daniel Holbert
0432772643
Bug 666041 patch 2: Add "-moz-flex" & "-moz-inline-flex" values for "display" property. r=bz
2012-06-26 15:11:38 -07:00
Scott Johnson
f9c641e24b
Bug 733614: Backout changes from bug 695222 for mozilla 16 branch [r=dbaron].
2012-06-13 11:00:56 -05:00
Daniel Holbert
ebdb5c86fb
Bug 763689: Add "auto" keyword for min-height and min-width, which for now just computes to 0. r=bz
2012-06-12 10:48:20 -07:00
Nathan Froyd
d2af2caa01
Bug 674922 - report on most common objects allocated in a PresShell's arena; r=roc,njn
2012-06-06 13:35:40 -04:00
Ms2ger
b9cdb58b83
Bug 629882 - Support currentColor in the 2D canvas context; r=dbaron
...
This changes nsCSSParser::ParseColorString to fill in an nsCSSValue instead
of an nscolor, and exposes nsRuleNode::ComputeColor to turn this nsCSSValue
into an nscolor.
Because gradients can be used with different canvas elements in different
documents, these cannot pass useful values for nsRuleNode::ComputeColor's
aPresContext and aStyleContext arguments. This patch also changes SetColor
to deal with those parameters being null.
2012-06-06 09:36:38 +02:00
Shriram Kunchanapalli
52ac1d5caf
Bug 219767: Move font size functions in nsStyleUtil into nsRuleNode. r=dbaron
2012-05-31 10:09:46 +05:30
Gervase Markham
82ff7027aa
Bug 716478 - update licence to MPL 2.
2012-05-21 12:12:37 +01:00
Robert Longson
8953e7caaf
Bug 528332 - Implement non-scaling-stroke vector-effect. Part 1 - style system changes r=dbaron
2012-05-18 09:33:40 +01:00
Boris Zbarsky
c8acd24873
Bug 753397. Add a field to nsCSSPropList for a preference that controls the property. r=dbaron
...
The actual controlling is not hooked up yet; that will happen in bug 753522 for
the DOM reflections of properties.
2012-05-09 21:29:37 -04:00
Makoto Kato
e70f17856c
Bug 249159 - Part 2 Implement CSS3 Text word-break property. r=dbaron, smontagu
2012-05-07 12:18:23 -07:00
L. David Baron
bad1e080cc
Examine parentBorder only when parentContext is non-null. (Bug 749860) r=bzbarsky
2012-04-27 21:56:31 -07:00
John Daggett
4984947d00
Bug 718539. Update font-feature-settings to latest spec syntax. r=dbaron
2012-04-26 15:24:26 +09:00
Patrick Wong
4ccd1d2fbb
Bug 745659 - Removed the nsPrintfCString constructor which takes a length and all corresponding instances that call that particular constructor. This is accomplished by removing the length component from the instantiation. r=jlebar
2012-04-24 14:43:00 -04:00
Kyle Huey
5e3fddb58d
Back out Bug 679230 due to Android reftest failures.
2012-04-07 10:36:49 -07:00
Kyle Huey
dd495263dd
Bug 697230: Part 1 - Centralize style image observers. r=bz
2012-04-07 08:58:41 -07:00
Nathan Froyd
68a79f10ae
Bug 731615 - Eliminate duplicate headers in layout. rs=smontagu
2012-02-29 10:57:47 -05:00
Lazar Sumar
e55f832fac
Bug 548375 - Implement css3-background background-repeat property two value syntax. r=dbaron
2012-02-24 21:23:14 -08:00
Zack Weinberg
f4fb4a1991
Bug 729142 - Convert layout/style to MOZ_STATIC_ASSERT. r=dbaron
2012-02-23 08:19:00 -08:00
Zack Weinberg
55006e6a38
Bug 96971: Move GetSystemFont from nsDeviceContext to mozilla::LookAndFeel. r=roc
2012-02-20 15:19:48 -08:00
Lazar Sumar
c075b7dd27
Bug 522607 - New css3-background background-position syntax. r=dbaron
2012-02-20 13:14:42 +13:00
Jonathan Watt
f4f67ef82f
Bug 416581, part 2 - Pay attention to the 'lang' attribute when fetching the user's font prefs for the CSS cascade. r=dbaron.
2012-01-25 23:52:26 +00:00
Boris Zbarsky
e0c4316236
Bug 716628. Implement support for 'turn' unit in CSS. r=dbaron
2012-02-04 00:01:23 -05:00
Daniel Holbert
8fa0f10c1e
Bug 695222 followup: fix indentation in column-fill chunk of nsRuleNode::ComputeColumnData. [ whitespace-only, DONTBUILD ]
2012-01-25 16:52:19 -08:00
Jonathan Watt
f36738d918
Bug 416581, part 1 - Move mLanguage from nsStyleVisibility to nsStyleFont. r=dbaron.
2012-01-24 13:09:55 +00:00
Simon Montagu
a05832e834
Implement text-align-last. Bug 536557, r=dbaron
2012-01-12 19:52:21 +02:00
Ed Morley
afde8417a5
Backout 6605cc311ec5 & 9217303c2e5c (bug 536557) for M4 orange
2012-01-12 15:33:00 +00:00
Simon Montagu
ad89de3591
Implement text-align-last. Bug 536557, r=dbaron
2012-01-12 16:29:20 +02:00
Scott Johnson
1575ebf83f
Bug 695222 - Implement column-fill part of CSS3 multicol spec. r=roc,dbaron
2011-12-25 23:25:59 -06:00
William Chen
6040dbfcfa
Bug 497995: Part 3 - Cleanup nsCoord initial value handling. r=dbaron
...
--HG--
extra : rebase_source : 9ed22aa9e24016566fe0e843e6019c4a583ca788
2011-12-22 18:35:02 -05:00
William Chen
e1ff790f8b
Bug 497995: Part 1 - Implement border-image revisions in latest css3-background spec. r=dbaron
...
--HG--
extra : rebase_source : 5a6cdac6a4b1353170f23f39dd2a209374e72531
2011-12-22 18:34:45 -05:00
Boris Zbarsky
101f2ecf55
Bug 700221. Don't pay attention to whether author color are allowed when deciding whether a change to a non-color property should drop native theming. r=dbaron
2011-12-21 16:53:21 -05:00
Scott Johnson
aef90f0f50
Backout changeset 93f523345fb6.
2011-12-20 00:01:32 -06:00
Scott Johnson
35fbd86079
Bug 695222 - Implement column-fill part of CSS3 multicol spec. r=roc,dbaron
2011-12-19 23:11:54 -06:00
Scott Johnson
578a640a52
Backed out changeset 74555805376d
2011-12-19 23:08:52 -06:00
Scott Johnson
d6fe638038
Bug 695222 - Implement column-fill part of CSS3 multicol spec. r=roc,dbaron
2011-12-19 22:25:19 -06:00
Andrew Quartey
6fe0fd072a
Bug 706010 - Remove NS_SPECIALIZE_TEMPLATE and HAVE_CPP_MODERN_SPECIALIZE_TEMPLATE_SYNTAX; r=khuey a=cleanup/removal
2011-12-13 14:17:59 +00:00
Ali Juma
40b68ad93d
Bug 586863 - Eliminate #ifdef GFX_HAS_INVERT blocks since GFX_HAS_INVERT is never defined. r=dbaron
2011-12-09 14:18:05 -05:00
L. David Baron
59c0a28be1
Add support for -moz-text-size-adjust CSS property. (Bug 627842, patch 1) r=bzbarsky
...
This property is analogous to the -webkit-text-size-adjust property (and
*maybe* also the -ms-text-size-adjust property). It allows pages to opt
out of text size adjustments performed on mobile devices by specifying
-moz-text-size-adjust: none.
2011-11-23 18:48:23 -08:00
Boris Zbarsky
50e24a68bc
Bug 608756. Cache display structs in the ruletree even for floated and positioned elements. r=dbaron
...
The basic idea is that mOriginalDisplay and mOriginalFloats are kept synchronized with mDisplay and mFloats unless the latter are changed due to position:absolute/fixed (for both) or float:left/right (for display). When initializing an nsStyleDisplay from a start struct, we restore the values from mOriginalDisplay/Floats to get correct behavior.
2011-10-29 03:04:20 -04:00
Masatoshi Kimura
270439fd7b
Bug 685400 - add "to" syntax and "magic corner" feature to CSS linear gradient. r=dbaron
...
--HG--
rename : layout/reftests/css-gradients/linear-ref.html => layout/reftests/css-gradients/linear-1-ref.html
rename : layout/reftests/css-gradients/linear.html => layout/reftests/css-gradients/linear-1b.html
rename : layout/reftests/css-gradients/linear-diagonal-1-ref.html => layout/reftests/css-gradients/linear-diagonal-1c.html
rename : layout/reftests/css-gradients/linear-diagonal-2-ref.html => layout/reftests/css-gradients/linear-diagonal-2c.html
rename : layout/reftests/css-gradients/linear-diagonal-3-ref.html => layout/reftests/css-gradients/linear-diagonal-3c.html
rename : layout/reftests/css-gradients/linear-diagonal-4-ref.html => layout/reftests/css-gradients/linear-diagonal-4c.html
rename : layout/reftests/css-gradients/linear-keywords-ref.html => layout/reftests/css-gradients/linear-keywords-1-ref.html
rename : layout/reftests/css-gradients/linear-keywords.html => layout/reftests/css-gradients/linear-keywords-1b.html
2011-10-22 21:41:11 +02:00
Ehsan Akhgari
92064e6d3f
Bug 690892 - Replace PR_TRUE/PR_FALSE with true/false on mozilla-central; rs=dbaron
...
Landing on a CLOSED TREE
2011-10-17 10:59:28 -04:00
Jeff Walden
b5e57820bf
Bug 693469 - Implement mozilla::ArrayLength and mozilla::ArrayEnd, and replace uses of NS_ARRAY_LENGTH whenever possible. (Exceptions: assigning to static initializers, use in static assertions, as template parameters, etc. These will go away when the relevant compilers have C++11 constexpr support.) r=cjones
...
--HG--
extra : rebase_source : b4bae9a0f85abf2feb828609b50e756916b99a6f
2011-10-10 22:50:08 -07:00
Jeff Walden
d0532c3e95
Back out everything since 5435ee09cf7b. Tinderbox compilers hate me. r=epic-fail
2011-10-12 12:21:53 -07:00
Jeff Walden
0f30b277bf
Bug 639469 - Implement mozilla::ArrayLength and mozilla::ArrayEnd, and replace uses of NS_ARRAY_LENGTH whenever possible. r=cjones
...
--HG--
extra : rebase_source : 860a8271bf7e51cde358f2a4185c410de1fc2960
2011-10-10 22:50:08 -07:00
Mats Palmgren
9fc0be400e
Bug 684266 - Do ellipsing on the end-edge only when a single value was specified for text-overflow. r=bzbarsky r=roc
2011-10-12 18:20:46 +02:00
Michael Wu
d2b70213ac
Bug 675553 - Switch from PRBool to bool on a CLOSED TREE , r=bsmedberg,khuey,bz,cjones
...
--HG--
rename : tools/trace-malloc/bloatblame.c => tools/trace-malloc/bloatblame.cpp
2011-09-28 23:19:26 -07:00
Masayuki Nakano
e848ae236f
Bug 669028 part.11 layout/style should use mozilla;LookAndFeel rather than nsILookAndFeel r=dbaron
2011-09-09 11:27:12 +09:00
Matt Woodrow
b98fe1bd08
Bug 505115 - Part 14a - Add -moz-transform-style css property. r=dbaron
2011-08-27 12:01:06 +12:00
Mats Palmgren
beabba5960
Bug 677582 - Implement CSS3 text-overflow: <left> <right> in the style system. r=dbaron
2011-08-20 22:41:39 +02:00
L. David Baron
b47daece8e
Make nsRuleNode's use of font metrics for ch and ex units pass the correct language. (Bug 678671, patch 3) r=roc
...
This makes these users (which are exceptions within layout, although
low-level enough that it won't matter for font inflation work) call
through to GetMetricsFor explicitly with the correct language, rather
than using the broken nsPresContext::GetMetricsFor and its
charset-detected language.
This improves the correctness of our behavior for 'ch' and 'ex' CSS
units when the font selection (or defaults) are language-dependent. It
should also reduce the number of unique sets of font metrics requested
(which helps nsFontCache effectiveness).
2011-08-14 10:08:04 -07:00
Jeff Muizelaar
1f4cd33169
Bug 660662. Eliminate NS_(ceil|floor). r=roc
...
These just called the system versions.
2011-05-30 15:08:55 -04:00
Matt Woodrow
b84eabcf4a
Bug 505115 - Part 12a - Implement -moz-perspective-origin style property. r=dbaron
2011-08-03 15:04:24 +12:00
Matt Woodrow
236f72943c
Bug 505115 - Part 11a - Add nsCSSValueTriplet and optionally read a z component to -moz-transform-origin. r=dbaron
2011-08-03 15:04:23 +12:00
Matt Woodrow
7a41f6a8a2
Bug 505115 - Part 10 - Implement the backface-visibility CSS property. r=dbaron
2011-08-03 15:04:22 +12:00
Matt Woodrow
b4bfd8dd6a
Bug 505115 - Part 9 - Implement the perspective() transform function and the perspective CSS property. r=dbaron
2011-08-03 15:04:22 +12:00
Matt Woodrow
5afc317166
Bug 505115 - Part 3 - Convert nsStyleTransformMatrix to be backed by a 4x4 matrix. r=dbaron
2011-07-23 10:28:07 +12:00
Javi Rueda
4717926b02
Bug 516547. Remove the browser.display.base_font_scaler preference and all the code to process it. r=bzbarsky, sr=dbaron.
2011-07-11 15:27:25 -04:00
arno renevier
8c5c530736
Bug 664955 - "ASSERTION: parser should have rejected negative length". r=bz
2011-07-04 20:13:20 +02:00
Ed Morley
e3686d8cb0
Bug 665686 - Fix unused variable warnings in layout/style/; r=dbaron
...
--HG--
extra : rebase_source : cadde7110be42e3523c908c095cab8852f00bfb3
2011-06-22 12:00:56 -04:00
Mats Palmgren
8506a31912
Bug 312156 - Implement CSS3 text-overflow. r=dbaron
2011-06-22 20:11:47 +02:00
Matheus Kerschbaum ext:(%2C%20L.%20David%20Baron%20%3Cdbaron%40dbaron.org%3E)
1b406143bc
Bug 664924 - Remove MOZ_CSS_ANIMATIONS ifdefs. r=dbaron
2011-06-20 16:47:09 -07:00
Matheus Kerschbaum
c0decf640b
Bug 660762 - Remove --disable-mathml support. r=roc
2011-06-02 13:11:33 +02:00
Boris Zbarsky
0b03178d45
Bug 655549 and bug 645768. Rejigger the quirk table color rule to work more reliably. r=dbaron
2011-06-01 07:43:31 -04:00
Makoto Kato
0f68dad14d
Bug 660587 - Remove nsRuleNode::gLangService. r=roc
2011-05-31 14:18:50 +09:00
Boris Zbarsky
7d1956e063
Bug 647885 part 2. Keep better track of whether our computed background-size was specified with percentages. r=dbaron a=sheriff
2011-05-23 16:36:18 -04:00
Boris Zbarsky
95558bbf2b
Bug 647885 part 1. Keep better track of whether our computed background-position was specified with percentages. r=dbaron
2011-05-23 16:36:18 -04:00