Mark layers that can use LCD text based on layer transform and opacity.

cc/layer_impl.h

Index: cc/layer_impl.h
diff --git a/cc/layer_impl.h b/cc/layer_impl.h
index f773c138e462196cc0b56acb725c3407317a57c2..ef8c1764afb216a4b2d32263a45540bee149ee7f 100644
--- a/cc/layer_impl.h
+++ b/cc/layer_impl.h
@@ -139,8 +139,8 @@ public:
     void setUseParentBackfaceVisibility(bool useParentBackfaceVisibility) { m_useParentBackfaceVisibility = useParentBackfaceVisibility; }
     bool useParentBackfaceVisibility() const { return m_useParentBackfaceVisibility; }
 
-    void setUseLCDText(bool useLCDText) { m_useLCDText = useLCDText; }
-    bool useLCDText() const { return m_useLCDText; }
+    void setCanUseLCDText(bool useLCDText) { m_canUseLCDText = useLCDText; }
+    bool useCanLCDText() const { return m_canUseLCDText; }
 
     void setSublayerTransform(const WebKit::WebTransformationMatrix&);
     const WebKit::WebTransformationMatrix& sublayerTransform() const { return m_sublayerTransform; }
@@ -165,6 +165,8 @@ public:
 
     bool drawOpacityIsAnimating() const { return m_drawOpacityIsAnimating; }
     void setDrawOpacityIsAnimating(bool drawOpacityIsAnimating) { m_drawOpacityIsAnimating = drawOpacityIsAnimating; }
+    bool screenSpaceOpacityIsAnimating() const { return m_screenSpaceOpacityIsAnimating; }
+    void setScreenSpaceOpacityIsAnimating(bool animating) { m_screenSpaceOpacityIsAnimating = animating; }
 
     LayerImpl* renderTarget() const { DCHECK(!m_renderTarget || m_renderTarget->renderSurface()); return m_renderTarget; }
     void setRenderTarget(LayerImpl* target) { m_renderTarget = target; }
@@ -348,7 +350,7 @@ private:
     bool m_drawCheckerboardForMissingTiles;
     WebKit::WebTransformationMatrix m_sublayerTransform;
     WebKit::WebTransformationMatrix m_transform;
-    bool m_useLCDText;
+    bool m_canUseLCDText;
 
     bool m_drawsContent;
     bool m_forceRenderSurface;
@@ -373,6 +375,7 @@ private:
     float m_drawDepth;
     float m_drawOpacity;
     bool m_drawOpacityIsAnimating;
+    bool m_screenSpaceOpacityIsAnimating;
 
     // Debug borders.
     SkColor m_debugBorderColor;