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Bug 1277437 - part1 : remove UA agent checkings. r=heycam

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There is no need to check whether the code is running on other browser, because we won't upstream the change back to the github repo, as this code uses a lots mozilla-only APIs.

Differential Revision: https://phabricator.services.mozilla.com/D19251

--HG--
extra : moz-landing-system : lando
This commit is contained in:
alwu 2019-02-14 07:01:42 +00:00
parent 1f2bb6f01b
commit a9d45e7e55
1 changed files with 7 additions and 25 deletions
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32
dom/media/webvtt/vtt.jsm
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@ -496,25 +496,15 @@ const {XPCOMUtils} = ChromeUtils.import("resource://gre/modules/XPCOMUtils.jsm")
// Constructs the computed display state of the cue (a div). Places the div
// into the overlay which should be a block level element (usually a div).
function CueStyleBox(window, cue, styleOptions) {
var isIE8 = (typeof navigator !== "undefined") &&
(/MSIE\s8\.0/).test(navigator.userAgent);
var isFirefoxSupportPseudo = (/firefox/i.test(window.navigator.userAgent))
&& this.supportPseudo;
var color = "rgba(255, 255, 255, 1)";
var backgroundColor = "rgba(0, 0, 0, 0.8)";
if (isIE8) {
color = "rgb(255, 255, 255)";
backgroundColor = "rgb(0, 0, 0)";
}
StyleBox.call(this);
this.cue = cue;
// Parse our cue's text into a DOM tree rooted at 'cueDiv'. This div will
// have inline positioning and will function as the cue background box.
if (isFirefoxSupportPseudo) {
if (this.supportPseudo) {
this.cueDiv = parseContent(window, cue.text, PARSE_CONTENT_MODE.PSUEDO_CUE);
} else {
this.cueDiv = parseContent(window, cue.text, PARSE_CONTENT_MODE.NORMAL_CUE);
@ -526,19 +516,18 @@ const {XPCOMUtils} = ChromeUtils.import("resource://gre/modules/XPCOMUtils.jsm")
font: styleOptions.font,
whiteSpace: "pre-line",
};
if (isFirefoxSupportPseudo) {
if (this.supportPseudo) {
delete styles.color;
delete styles.backgroundColor;
delete styles.font;
delete styles.whiteSpace;
}
if (!isIE8) {
styles.writingMode = cue.vertical === "" ? "horizontal-tb"
: cue.vertical === "lr" ? "vertical-lr"
: "vertical-rl";
styles.unicodeBidi = "plaintext";
}
styles.writingMode = cue.vertical === "" ? "horizontal-tb"
: cue.vertical === "lr" ? "vertical-lr"
: "vertical-rl";
styles.unicodeBidi = "plaintext";
this.applyStyles(styles, this.cueDiv);
// Create an absolutely positioned div that will be used to position the cue
@ -687,9 +676,6 @@ const {XPCOMUtils} = ChromeUtils.import("resource://gre/modules/XPCOMUtils.jsm")
// compute things with such as if it overlaps or intersects with another Element.
// Can initialize it with either a StyleBox or another BoxPosition.
function BoxPosition(obj) {
var isIE8 = (typeof navigator !== "undefined") &&
(/MSIE\s8\.0/).test(navigator.userAgent);
// Either a BoxPosition was passed in and we need to copy it, or a StyleBox
// was passed in and we need to copy the results of 'getBoundingClientRect'
// as the object returned is readonly. All co-ordinate values are in reference
@ -718,10 +704,6 @@ const {XPCOMUtils} = ChromeUtils.import("resource://gre/modules/XPCOMUtils.jsm")
this.bottom = obj.bottom || (top + (obj.height || height));
this.width = obj.width || width;
this.lineHeight = lh !== undefined ? lh : obj.lineHeight;
if (isIE8 && !this.lineHeight) {
this.lineHeight = 13;
}
}
// Move the box along a particular axis. Optionally pass in an amount to move