Rename repaint to paintInvalidation in core/rendering/compositing.

Source/core/rendering/compositing/RenderLayerCompositor.h

Index: Source/core/rendering/compositing/RenderLayerCompositor.h
diff --git a/Source/core/rendering/compositing/RenderLayerCompositor.h b/Source/core/rendering/compositing/RenderLayerCompositor.h
index 56af0115ea7cc9ddf7e13f1e67b398044fc72a75..05cef85c7dba0a61ff517b1318a2b96bc795cea4 100644
--- a/Source/core/rendering/compositing/RenderLayerCompositor.h
+++ b/Source/core/rendering/compositing/RenderLayerCompositor.h
@@ -106,8 +106,8 @@ public:
     GraphicsLayer* fixedRootBackgroundLayer() const;
     void setNeedsUpdateFixedBackground() { m_needsUpdateFixedBackground = true; }
 
-    // Repaint the appropriate layers when the given RenderLayer starts or stops being composited.
-    void repaintOnCompositingChange(RenderLayer*);
+    // Issue paint invalidations of the appropriate layers when the given RenderLayer starts or stops being composited.
+    void paintInvalidationOnCompositingChange(RenderLayer*);
 
     void fullyInvalidatePaint();
 
@@ -151,8 +151,8 @@ public:
     GraphicsLayer* layerForVerticalScrollbar() const { return m_layerForVerticalScrollbar.get(); }
     GraphicsLayer* layerForScrollCorner() const { return m_layerForScrollCorner.get(); }
 
-    void resetTrackedRepaintRects();
-    void setTracksRepaints(bool);
+    void resetTrackedPaintInvalidationRects();
+    void setTracksPaintInvalidations(bool);
 
     virtual String debugName(const GraphicsLayer*) OVERRIDE;
     DocumentLifecycle& lifecycle() const;
@@ -183,7 +183,7 @@ private:
     virtual void notifyAnimationStarted(const GraphicsLayer*, double) OVERRIDE { }
     virtual void paintContents(const GraphicsLayer*, GraphicsContext&, GraphicsLayerPaintingPhase, const IntRect&) OVERRIDE;
 
-    virtual bool isTrackingRepaints() const OVERRIDE;
+    virtual bool isTrackingPaintInvalidations() const OVERRIDE;
 
     // Whether the given RL needs to paint into its own separate backing (and hence would need its own CompositedLayerMapping).
     bool needsOwnBacking(const RenderLayer*) const;
@@ -236,7 +236,7 @@ private:
     // m_compositingDirty.
     bool m_rootShouldAlwaysCompositeDirty;
     bool m_needsUpdateFixedBackground;
-    bool m_isTrackingRepaints; // Used for testing.
+    bool m_isTrackingPaintInvalidations; // Used for testing.
 
     RootLayerAttachment m_rootLayerAttachment;