Adding hooks for gathering total pixels painted and rasterized stats.

webkit/compositor_bindings/WebLayerTreeViewImpl.cpp

Index: webkit/compositor_bindings/WebLayerTreeViewImpl.cpp
diff --git a/webkit/compositor_bindings/WebLayerTreeViewImpl.cpp b/webkit/compositor_bindings/WebLayerTreeViewImpl.cpp
index c7b4d317882aa43ad7a353d4ba6a3dafefcefafd..6bb55fae33da93437123ff855deecc049ff7bb65 100644
--- a/webkit/compositor_bindings/WebLayerTreeViewImpl.cpp
+++ b/webkit/compositor_bindings/WebLayerTreeViewImpl.cpp
@@ -177,6 +177,8 @@ void WebLayerTreeViewImpl::renderingStats(WebRenderingStats& stats) const
     stats.totalRasterizeTimeInSeconds = ccStats.totalRasterizeTimeInSeconds;
     stats.totalCommitTimeInSeconds = ccStats.totalCommitTimeInSeconds;
     stats.totalCommitCount = ccStats.totalCommitCount;
+    stats.totalPixelsPainted = ccStats.totalPixelsPainted;
+    stats.totalPixelsRasterized = ccStats.totalPixelsRasterized;
     stats.numImplThreadScrolls = ccStats.numImplThreadScrolls;
     stats.numMainThreadScrolls = ccStats.numMainThreadScrolls;
 }