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

content/shell/renderer/test_runner/web_test_delegate.h

Index: content/shell/renderer/test_runner/web_test_delegate.h
diff --git a/content/shell/renderer/test_runner/web_test_delegate.h b/content/shell/renderer/test_runner/web_test_delegate.h
index 3a6e56f9a9743d5205a6cfbf9fd60ba294794e01..0d7c5f3436798eeeb7a371a2f2bf5e7e4b5b688d 100644
--- a/content/shell/renderer/test_runner/web_test_delegate.h
+++ b/content/shell/renderer/test_runner/web_test_delegate.h
@@ -34,6 +34,7 @@ struct WebURLError;
 
 namespace cc {
 class TextureLayer;
+class TextureLayerClient;
 class SharedBitmapManager;
 }
 
@@ -221,6 +222,10 @@ class WebTestDelegate {
   // Clear all the permissions set via SetPermission().
   virtual void ResetPermissions() = 0;
 
+  // Creates cc::TextureLayer for TestPlugin.
+  virtual scoped_refptr<cc::TextureLayer> CreateTextureLayerForMailbox(
+      cc::TextureLayerClient* client) = 0;
+
   // Instantiates WebLayerImpl for TestPlugin.
   virtual blink::WebLayer* InstantiateWebLayer(
       scoped_refptr<cc::TextureLayer> layer) = 0;