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Bug 1168487 - Update the last use site of ScrollbarAreaToExcludeFromCompositionBoundsFor to use LD pixels. r=tn

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extra : commitid : KOthonJxSmF
This commit is contained in:
Kartikaya Gupta 2015-08-07 14:23:13 -04:00
parent fc0a211e9e
commit d2d5cdc395
1 changed files with 7 additions and 4 deletions
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11
layout/base/MobileViewportManager.cpp
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@ -190,11 +190,14 @@ MobileViewportManager::UpdateSPCSPS(const ScreenIntSize& aDisplaySize,
{
ScreenSize compositionSize(aDisplaySize);
ScreenMargin scrollbars =
CSSMargin::FromAppUnits(
LayoutDeviceMargin::FromAppUnits(
nsLayoutUtils::ScrollbarAreaToExcludeFromCompositionBoundsFor(
mPresShell->GetRootScrollFrame()))
* CSSToScreenScale(1.0f); // Scrollbars are not subject to scaling, so
// CSS pixels = layer pixels for them (modulo bug 1168487).
mPresShell->GetRootScrollFrame()),
mPresShell->GetPresContext()->AppUnitsPerDevPixel())
// Scrollbars are not subject to resolution scaling, so LD pixels =
// Screen pixels for them.
* LayoutDeviceToScreenScale(1.0f);
compositionSize.width -= scrollbars.LeftRight();
compositionSize.height -= scrollbars.TopBottom();
CSSSize compSize = compositionSize / aZoom;