cc: Improve frame/commit accounting

cc/CCLayerTreeHost.cpp

Index: cc/CCLayerTreeHost.cpp
diff --git a/cc/CCLayerTreeHost.cpp b/cc/CCLayerTreeHost.cpp
index a63bfe76f70e0e3d15f65d9240cb3cf29e0de29e..18de85ba41c5052fcb8a4d3222133058c10df1ba 100644
--- a/cc/CCLayerTreeHost.cpp
+++ b/cc/CCLayerTreeHost.cpp
@@ -233,7 +233,7 @@ void CCLayerTreeHost::updateAnimations(double monotonicFrameBeginTime)
     animateLayers(monotonicFrameBeginTime);
     m_animating = false;
 
-    m_renderingStats.numAnimationFrames++;
+    m_renderingStats.mainAnimationFrameCount++;
 }
 
 void CCLayerTreeHost::layout()
@@ -817,7 +817,7 @@ void CCLayerTreeHost::animateLayers(double monotonicTime)
     if (!CCSettings::acceleratedAnimationEnabled() || !m_needsAnimateLayers)
         return;
 
-    TRACE_EVENT0("cc", "CCLayerTreeHostImpl::animateLayers");
+    TRACE_EVENT0("cc", "CCLayerTreeHost::animateLayers");
     m_needsAnimateLayers = animateLayersRecursive(m_rootLayer.get(), monotonicTime);
 }
 
@@ -838,7 +838,6 @@ bool CCLayerTreeHost::animateLayersRecursive(LayerChromium* current, double mono
         if (animateLayersRecursive(current->children()[i].get(), monotonicTime))
             subtreeNeedsAnimateLayers = true;
     }
-
     return subtreeNeedsAnimateLayers;
 }