cc: Remove most methods from RendererClient.

cc/test/pixel_test_output_surface.h

Index: cc/test/pixel_test_output_surface.h
diff --git a/cc/test/pixel_test_output_surface.h b/cc/test/pixel_test_output_surface.h
index bb6fdfc39bfab5d2b47ccf916f7bfb5de7aac92d..0b58ac263ded5f3dcbf82f9fc1e52fe3488ff528 100644
--- a/cc/test/pixel_test_output_surface.h
+++ b/cc/test/pixel_test_output_surface.h
@@ -12,13 +12,12 @@ namespace cc {
 class PixelTestOutputSurface : public OutputSurface {
  public:
   explicit PixelTestOutputSurface(
-      scoped_refptr<ContextProvider> context_provider)
-      : OutputSurface(context_provider) {}
+      scoped_refptr<ContextProvider> context_provider);
   explicit PixelTestOutputSurface(
-      scoped_ptr<cc::SoftwareOutputDevice> software_device)
-      : OutputSurface(software_device.Pass()) {}
+      scoped_ptr<cc::SoftwareOutputDevice> software_device);
 
   virtual void Reshape(gfx::Size size, float scale_factor) OVERRIDE;
+  virtual bool HasExternalStencilTest() const OVERRIDE;
 
   void set_surface_expansion_size(gfx::Size surface_expansion_size) {
     surface_expansion_size_ = surface_expansion_size;
@@ -29,11 +28,15 @@ class PixelTestOutputSurface : public OutputSurface {
   void set_device_clip(gfx::Rect device_clip) {
     device_clip_ = device_clip;
   }
+  void set_has_external_stencil_test(bool has_test) {
+    external_stencil_test_ = has_test;
+  }
 
  private:
   gfx::Size surface_expansion_size_;
   gfx::Vector2d viewport_offset_;
   gfx::Rect device_clip_;
+  bool external_stencil_test_;
 };
 
 }  // namespace cc