Optimize layout/repaint on FrameView resize

Source/core/frame/FrameView.h

Index: Source/core/frame/FrameView.h
diff --git a/Source/core/frame/FrameView.h b/Source/core/frame/FrameView.h
index 07ccb28aa615c5404ea1573685f16da955149182..0b50afbb18a4464c05c7852ec42b9286de82fe14 100644
--- a/Source/core/frame/FrameView.h
+++ b/Source/core/frame/FrameView.h
@@ -101,6 +101,7 @@ public:
 
     bool needsLayout() const;
     void setNeedsLayout();
+    void setNeedsResizeLayout();
 
     // Methods for getting/setting the size Blink should use to layout the contents.
     IntSize layoutSize(IncludeScrollbarsInRect = ExcludeScrollbars) const;
@@ -111,8 +112,6 @@ public:
     void setLayoutSizeFixedToFrameSize(bool isFixed) { m_layoutSizeFixedToFrameSize = isFixed; }
     bool layoutSizeFixedToFrameSize() { return m_layoutSizeFixedToFrameSize; }
 
-    bool needsFullRepaint() const { return m_doFullRepaint; }
-
     void updateCompositingLayersAfterStyleChange();
     void updateCompositingLayersAfterLayout();
 
@@ -265,6 +264,7 @@ public:
     void setTracksRepaints(bool);
     bool isTrackingRepaints() const { return m_isTrackingRepaints; }
     void resetTrackedRepaints();
+    const Vector<IntRect>& trackedRepaintRects() const { return m_trackedRepaintRects; }

[dsinclair, 2014/03/20 10:41:41]

This seems unrelated to the current cl?

[Xianzhu, 2014/03/20 17:47:43]

The new unit test needs it.

     String trackedRepaintRectsAsText() const;
 
     typedef HashSet<ScrollableArea*> ScrollableAreaSet;
@@ -429,8 +429,6 @@ private:
 
     RefPtr<LocalFrame> m_frame;
 
-    bool m_doFullRepaint;
-
     bool m_canHaveScrollbars;
     bool m_cannotBlitToWindow;
     bool m_isOverlapped;