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

cc/layers/image_layer.cc

Index: cc/layers/image_layer.cc
diff --git a/cc/layers/image_layer.cc b/cc/layers/image_layer.cc
index 4f5e1056250cc58eb7b62220e9d757f23bb27f39..59cf91387b553b09931f7725f03962c7758b2536 100644
--- a/cc/layers/image_layer.cc
+++ b/cc/layers/image_layer.cc
@@ -41,8 +41,7 @@ void ImageLayer::SetTexturePriorities(const PriorityCalculator& priority_calc) {
 }
 
 void ImageLayer::Update(ResourceUpdateQueue* queue,
-                        const OcclusionTracker* occlusion,
-                        RenderingStats* stats) {
+                        const OcclusionTracker* occlusion) {
   CreateUpdaterIfNeeded();
   if (needs_display_) {
     updater_->set_bitmap(bitmap_);
@@ -50,7 +49,7 @@ void ImageLayer::Update(ResourceUpdateQueue* queue,
     InvalidateContentRect(gfx::Rect(content_bounds()));
     needs_display_ = false;
   }
-  TiledLayer::Update(queue, occlusion, stats);
+  TiledLayer::Update(queue, occlusion);
 }
 
 void ImageLayer::CreateUpdaterIfNeeded() {