Fix subpixel accumulation for composited content layers

third_party/WebKit/Source/core/layout/compositing/CompositedLayerMapping.h

Index: third_party/WebKit/Source/core/layout/compositing/CompositedLayerMapping.h
diff --git a/third_party/WebKit/Source/core/layout/compositing/CompositedLayerMapping.h b/third_party/WebKit/Source/core/layout/compositing/CompositedLayerMapping.h
index 93154db8fa0c64b6e60702df94630dde442daa80..cea3e5f1b4e376e716575cc9247a93171721ad92 100644
--- a/third_party/WebKit/Source/core/layout/compositing/CompositedLayerMapping.h
+++ b/third_party/WebKit/Source/core/layout/compositing/CompositedLayerMapping.h
@@ -304,7 +304,6 @@ private:
     Color layoutObjectBackgroundColor() const;
     void updateBackgroundColor();
     void updateContentsRect();
-    void updateContentsOffsetInCompositingLayer(const IntPoint& snappedOffsetFromCompositedAncestor, const IntPoint& graphicsLayerParentLocation);
     void updateAfterPartResize();
     void updateCompositingReasons();
 
@@ -442,14 +441,10 @@ private:
 
     LayoutRect m_compositedBounds;
 
-    LayoutSize m_contentOffsetInCompositingLayer;
-
     // We keep track of the scrolling contents offset, so that when it changes we can notify the ScrollingCoordinator, which
     // passes on main-thread scrolling updates to the compositor.
     DoubleSize m_scrollingContentsOffset;
 
-    unsigned m_contentOffsetInCompositingLayerDirty : 1;
-
     unsigned m_pendingUpdateScope : 2;
     unsigned m_isMainFrameLayoutViewLayer : 1;