cc: Remove most methods from RendererClient.

cc/test/fake_output_surface.h

Index: cc/test/fake_output_surface.h
diff --git a/cc/test/fake_output_surface.h b/cc/test/fake_output_surface.h
index 3f87bd3463063f9ad6f7f95d591c5a8ac79393e0..ab910894a63c98f88e0d6f21514986ec92ec3582 100644
--- a/cc/test/fake_output_surface.h
+++ b/cc/test/fake_output_surface.h
@@ -108,6 +108,12 @@ class FakeOutputSurface : public OutputSurface {
 
   void ReturnResource(unsigned id, CompositorFrameAck* ack);
 
+  virtual bool HasExternalStencilTest() const OVERRIDE;
+
+  void set_has_external_stencil_test(bool has_test) {
+    has_external_stencil_test_ = has_test;
+  }
+
  protected:
   FakeOutputSurface(
       scoped_refptr<ContextProvider> context_provider,
@@ -129,6 +135,7 @@ class FakeOutputSurface : public OutputSurface {
   size_t num_sent_frames_;
   bool needs_begin_frame_;
   bool forced_draw_to_software_device_;
+  bool has_external_stencil_test_;
   base::WeakPtrFactory<FakeOutputSurface> fake_weak_ptr_factory_;
   TransferableResourceArray resources_held_by_parent_;
 };