cc: Make LayerTreeHost a protected Layer member.

third_party/WebKit/Source/platform/testing/WebLayerTreeViewImplForTesting.cpp

 // Copyright 2013 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 "platform/testing/WebLayerTreeViewImplForTesting.h"
 
 #include "base/threading/thread_task_runner_handle.h"
 #include "cc/animation/animation_host.h"
 #include "cc/animation/animation_timeline.h"
 #include "cc/blink/web_layer_impl.h"
@@ skipping 32 matching lines @@
 
     // For web contents, layer transforms should scale up the contents of layers
     // to keep content always crisp when possible.
     settings.layer_transforms_should_scale_layer_contents = true;
 
     return settings;
 }
 
 bool WebLayerTreeViewImplForTesting::hasLayer(const WebLayer& layer)
 {
-    return layer.ccLayer()->layer_tree_host() == m_layerTreeHost.get();
+    return layer.ccLayer()->GetLayerTreeHostForTesting() == m_layerTreeHost.get();
 }
 
 void WebLayerTreeViewImplForTesting::setRootLayer(const blink::WebLayer& root)
 {
     m_layerTreeHost->GetLayerTree()->SetRootLayer(static_cast<const cc_blink::WebLayerImpl*>(&root)->layer());
 }
 
 void WebLayerTreeViewImplForTesting::clearRootLayer()
 {
     m_layerTreeHost->GetLayerTree()->SetRootLayer(scoped_refptr<cc::Layer>());
@@ skipping 152 matching lines @@
 {
     m_layerTreeHost->GetLayerTree()->SetHaveScrollEventHandlers(haveEentHandlers);
 }
 
 bool WebLayerTreeViewImplForTesting::haveScrollEventHandlers() const
 {
     return m_layerTreeHost->GetLayerTree()->have_scroll_event_handlers();
 }
 
 } // namespace blink