cc: Unflake and re-enable the new pinch zoom unit tests.

cc/trees/layer_tree_host_impl.cc

 // Copyright 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/trees/layer_tree_host_impl.h"
 
 #include <algorithm>
 #include <limits>
 
 #include "base/basictypes.h"
@@ skipping 1774 matching lines @@
     UpdateViewportContainerSizes();
   } else {
     active_tree_->ProcessUIResourceRequestQueue();
   }
 
   active_tree_->DidBecomeActive();
   ActivateAnimations();
   if (settings_.impl_side_painting)
     client_->RenewTreePriority();
 
+  // TODO(danakj): BTW, we can draw inside this function call before activation
+  // is really done. ¯\_(ツ)_/¯ crbug.com/433461
   client_->OnCanDrawStateChanged(CanDraw());
   client_->DidActivateSyncTree();
   if (!tree_activation_callback_.is_null())
     tree_activation_callback_.Run();
 
   if (debug_state_.continuous_painting) {
     const RenderingStats& stats =
         rendering_stats_instrumentation_->GetRenderingStats();
     // TODO(hendrikw): This requires a different metric when we commit directly
     // to the active tree.  See crbug.com/429311.
@@ skipping 1626 matching lines @@
 }
 
 void LayerTreeHostImpl::UnregisterPictureLayerImpl(PictureLayerImpl* layer) {
   std::vector<PictureLayerImpl*>::iterator it =
       std::find(picture_layers_.begin(), picture_layers_.end(), layer);
   DCHECK(it != picture_layers_.end());
   picture_layers_.erase(it);
 }
 
 }  // namespace cc