Add the DelegatingRenderer class with its initialize path.

cc/test/fake_output_surface.h

 // Copyright 2012 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 CC_TEST_FAKE_OUTPUT_SURFACE_H_
 #define CC_TEST_FAKE_OUTPUT_SURFACE_H_
 
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "cc/output_surface.h"
 #include "cc/test/compositor_fake_web_graphics_context_3d.h"
 #include "cc/test/fake_software_output_device.h"
 #include "third_party/WebKit/Source/Platform/chromium/public/WebGraphicsContext3D.h"
 
 namespace cc {
 
 class FakeOutputSurface : public OutputSurface {
  public:
   virtual ~FakeOutputSurface();
 
   static inline scoped_ptr<FakeOutputSurface> Create3d(
       scoped_ptr<WebKit::WebGraphicsContext3D> context3d) {
-    return make_scoped_ptr(new FakeOutputSurface(context3d.Pass()));
+    return make_scoped_ptr(new FakeOutputSurface(context3d.Pass(), false));
   }
 
   static inline scoped_ptr<FakeOutputSurface> CreateSoftware(
       scoped_ptr<SoftwareOutputDevice> software_device) {
-    return make_scoped_ptr(new FakeOutputSurface(software_device.Pass()));
+    return make_scoped_ptr(
+        new FakeOutputSurface(software_device.Pass(), false));
+  }
+
+  static inline scoped_ptr<FakeOutputSurface> CreateDelegating3d(
+      scoped_ptr<WebKit::WebGraphicsContext3D> context3d) {
+    return make_scoped_ptr(new FakeOutputSurface(context3d.Pass(), true));
+  }
+
+  static inline scoped_ptr<FakeOutputSurface> CreateDelegatingSoftware(
+      scoped_ptr<SoftwareOutputDevice> software_device) {
+    return make_scoped_ptr(
+        new FakeOutputSurface(software_device.Pass(), true));
   }
 
   virtual bool BindToClient(OutputSurfaceClient* client) OVERRIDE;
 
   virtual const struct Capabilities& Capabilities() const OVERRIDE;
 
   virtual WebKit::WebGraphicsContext3D* Context3D() const OVERRIDE;
   virtual SoftwareOutputDevice* SoftwareDevice() const OVERRIDE;
 
   virtual void SendFrameToParentCompositor(const CompositorFrame&) OVERRIDE;
 
 private:
   explicit FakeOutputSurface(
-      scoped_ptr<WebKit::WebGraphicsContext3D> context3d);
+      scoped_ptr<WebKit::WebGraphicsContext3D> context3d, bool has_parent);
   explicit FakeOutputSurface(
-      scoped_ptr<SoftwareOutputDevice> software_device);
+      scoped_ptr<SoftwareOutputDevice> software_device, bool has_parent);
 
   scoped_ptr<WebKit::WebGraphicsContext3D> context3d_;
   scoped_ptr<SoftwareOutputDevice> software_device_;
   struct Capabilities capabilities_;
   OutputSurfaceClient* client_;
 };
 
 static inline scoped_ptr<cc::OutputSurface> createFakeOutputSurface()
 {
     return FakeOutputSurface::Create3d(
         WebKit::CompositorFakeWebGraphicsContext3D::create(
             WebKit::WebGraphicsContext3D::Attributes())
         .PassAs<WebKit::WebGraphicsContext3D>())
         .PassAs<cc::OutputSurface>();
 }
 
 }  // namespace cc
 
 #endif  // CC_TEST_FAKE_OUTPUT_SURFACE_H_