cc: Remove OutputSurfaceClient::DidSwapBuffers().

cc/output/renderer_unittest.cc

 // Copyright 2014 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.
 
 #include "cc/output/delegating_renderer.h"
 #include "cc/output/gl_renderer.h"
 #include "cc/output/output_surface.h"
 #include "cc/test/fake_output_surface_client.h"
 #include "cc/test/fake_renderer_client.h"
 #include "cc/test/fake_resource_provider.h"
@@ skipping 16 matching lines @@
 };
 
 TestOutputSurface::TestOutputSurface(
     scoped_refptr<ContextProvider> context_provider)
     : OutputSurface(std::move(context_provider), nullptr, nullptr) {}
 
 TestOutputSurface::~TestOutputSurface() {
 }
 
 void TestOutputSurface::SwapBuffers(CompositorFrame frame) {
-  client_->DidSwapBuffers();
   client_->DidSwapBuffersComplete();
 }
 
 class MockContextProvider : public TestContextProvider {
  public:
   explicit MockContextProvider(
       std::unique_ptr<TestWebGraphicsContext3D> context)
       : TestContextProvider(std::move(context)) {}
   MOCK_METHOD0(DeleteCachedResources, void());
 
@@ skipping 59 matching lines @@
   EXPECT_CALL(*(this->context_provider_.get()), DeleteCachedResources())
       .Times(1);
 
   EXPECT_TRUE(this->renderer_->visible());
   this->renderer_->SetVisible(false);
   EXPECT_FALSE(this->renderer_->visible());
 }
 
 }  // namespace
 }  // namespace cc