cc: Remove most methods from RendererClient.

cc/test/pixel_test_output_surface.cc

Index: cc/test/pixel_test_output_surface.cc
diff --git a/cc/test/pixel_test_output_surface.cc b/cc/test/pixel_test_output_surface.cc
index ffc3d26c465814ecdbde0a9663423f4381eccb07..8306cc8cd6cd6012ec01ba55820d0513016756b1 100644
--- a/cc/test/pixel_test_output_surface.cc
+++ b/cc/test/pixel_test_output_surface.cc
@@ -9,6 +9,14 @@
 
 namespace cc {
 
+PixelTestOutputSurface::PixelTestOutputSurface(
+    scoped_refptr<ContextProvider> context_provider)
+    : OutputSurface(context_provider), external_stencil_test_(false) {}
+
+PixelTestOutputSurface::PixelTestOutputSurface(
+    scoped_ptr<cc::SoftwareOutputDevice> software_device)
+    : OutputSurface(software_device.Pass()), external_stencil_test_(false) {}
+
 void PixelTestOutputSurface::Reshape(gfx::Size size, float scale_factor) {
   gfx::Size expanded_size(size.width() + surface_expansion_size_.width(),
                           size.height() + surface_expansion_size_.height());
@@ -22,4 +30,8 @@ void PixelTestOutputSurface::Reshape(gfx::Size size, float scale_factor) {
       gfx::Transform(), offset_viewport, offset_clip, true);
 }
 
+bool PixelTestOutputSurface::HasExternalStencilTest() const {
+  return external_stencil_test_;
+}
+
 }  // namespace cc