cc: Make LayerTreeHost a protected Layer member.

content/renderer/pepper/pepper_compositor_host.cc

 // Copyright 2014 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 "content/renderer/pepper/pepper_compositor_host.h"
 
 #include <stddef.h>
 #include <limits>
 #include <utility>
 
@@ skipping 392 matching lines @@
 
     if (old_layer)
       *old_layer = *pp_layer;
     else
       layers_.push_back(LayerData(cc_layer, *pp_layer));
   }
 
   // We need to force a commit for each CommitLayers() call, even if no layers
   // changed since the last call to CommitLayers(). This is so
   // WiewInitiatedPaint() will always be called.
-  if (layer_->layer_tree_host())
-    layer_->layer_tree_host()->SetNeedsCommit();
+  if (layer_->GetLayerTree())
+    layer_->GetLayerTree()->SetNeedsCommit();
 
   // If the host is not bound to the instance, return PP_OK immediately.
   if (!bound_instance_)
     return PP_OK;
 
   commit_layers_reply_context_ = context->MakeReplyMessageContext();
   return PP_OK_COMPLETIONPENDING;
 }
 
 }  // namespace content