CC: Plumb LayerSettings parameter for cc::Layer construction.

android_webview/browser/hardware_renderer.h

 // 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.
 
 #ifndef ANDROID_WEBVIEW_BROWSER_HARDWARE_RENDERER_H_
 #define ANDROID_WEBVIEW_BROWSER_HARDWARE_RENDERER_H_
 
 #include "android_webview/browser/shared_renderer_state.h"
 #include "base/memory/scoped_ptr.h"
 #include "cc/layers/delegated_frame_resource_collection.h"
 #include "cc/trees/layer_tree_host_client.h"
 #include "cc/trees/layer_tree_host_single_thread_client.h"
 
 struct AwDrawGLInfo;
 
 namespace cc {
 class DelegatedFrameProvider;
 class DelegatedRendererLayer;
 class Layer;
+class LayerSettings;
 class LayerTreeHost;
 }
 
 namespace android_webview {
 
 class AwGLSurface;
 class ChildFrame;
 class ParentOutputSurface;
 
 class HardwareRenderer : public cc::LayerTreeHostClient,
                          public cc::LayerTreeHostSingleThreadClient,
                          public cc::DelegatedFrameResourceCollectionClient {
  public:
   explicit HardwareRenderer(SharedRendererState* state);
   ~HardwareRenderer() override;
 
+  static const cc::LayerSettings& LayerSettings();

[boliu, 2015/05/22 04:24:07]

This should not be a public method. Just put it in an anonymous namespace in the
cc file. Also return by value, not reference.

+
   void DrawGL(bool stencil_enabled,
               int framebuffer_binding_ext,
               AwDrawGLInfo* draw_info);
   void CommitFrame();
 
   // cc::LayerTreeHostClient overrides.
   void WillBeginMainFrame() override {}
   void DidBeginMainFrame() override;
   void BeginMainFrame(const cc::BeginFrameArgs& args) override {}
   void BeginMainFrameNotExpectedSoon() override {}
@@ skipping 53 matching lines @@
 
   // This is owned indirectly by |layer_tree_host_|.
   ParentOutputSurface* output_surface_;
 
   DISALLOW_COPY_AND_ASSIGN(HardwareRenderer);
 };
 
 }  // namespace android_webview
 
 #endif  // ANDROID_WEBVIEW_BROWSER_HARDWARE_RENDERER_H_