cc: Switch RenderingStats collection in Layer::Update() to RenderingStatsInstrumentation

cc/resources/image_layer_updater.h

Index: cc/resources/image_layer_updater.h
diff --git a/cc/resources/image_layer_updater.h b/cc/resources/image_layer_updater.h
index f9fca00d2afa85fd493e70c7579b1d00a8ce44b2..6a47643224cd08e7fa0a2557ea191da5d6a8b368 100644
--- a/cc/resources/image_layer_updater.h
+++ b/cc/resources/image_layer_updater.h
@@ -23,8 +23,7 @@ class ImageLayerUpdater : public LayerUpdater {
     virtual void Update(ResourceUpdateQueue* queue,
                         gfx::Rect source_rect,
                         gfx::Vector2d dest_offset,
-                        bool partial_update,
-                        RenderingStats* stats) OVERRIDE;
+                        bool partial_update) OVERRIDE;
 
    private:
     ImageLayerUpdater* updater_;