Remove WebGraphicsContext3D getter from cc::ContextProvider

cc/output/output_surface_unittest.cc

 // Copyright 2013 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/output_surface.h"
 
 #include "base/test/test_simple_task_runner.h"
 #include "cc/output/managed_memory_policy.h"
 #include "cc/output/output_surface_client.h"
 #include "cc/output/software_output_device.h"
@@ skipping 125 matching lines @@
   TestOutputSurface output_surface(provider);
   EXPECT_FALSE(output_surface.HasClient());
 
   FakeOutputSurfaceClient client;
   EXPECT_TRUE(output_surface.BindToClient(&client));
   EXPECT_TRUE(output_surface.HasClient());
   EXPECT_FALSE(client.deferred_initialize_called());
 
   // Verify DidLoseOutputSurface callback is hooked up correctly.
   EXPECT_FALSE(client.did_lose_output_surface_called());
-  provider->TestContext3d()->loseContextCHROMIUM(
+  output_surface.context_provider()->ContextGL()->LoseContextCHROMIUM(
       GL_GUILTY_CONTEXT_RESET_ARB, GL_INNOCENT_CONTEXT_RESET_ARB);
+  output_surface.context_provider()->ContextGL()->Flush();
   EXPECT_TRUE(client.did_lose_output_surface_called());
 }
 
 TEST(OutputSurfaceTest, ClientPointerIndicatesBindToClientFailure) {
   scoped_refptr<TestContextProvider> context_provider =
       TestContextProvider::Create();
 
   // Lose the context so BindToClient fails.
   context_provider->UnboundTestContext3d()->set_context_lost(true);
 
@@ skipping 33 matching lines @@
 
 TEST_F(OutputSurfaceTestInitializeNewContext3d, Success) {
   BindOutputSurface();
   EXPECT_FALSE(client_.deferred_initialize_called());
 
   EXPECT_TRUE(output_surface_.InitializeNewContext3d(context_provider_));
   EXPECT_TRUE(client_.deferred_initialize_called());
   EXPECT_EQ(context_provider_, output_surface_.context_provider());
 
   EXPECT_FALSE(client_.did_lose_output_surface_called());
-  context_provider_->TestContext3d()->loseContextCHROMIUM(
+  context_provider_->ContextGL()->LoseContextCHROMIUM(
       GL_GUILTY_CONTEXT_RESET_ARB, GL_INNOCENT_CONTEXT_RESET_ARB);
+  context_provider_->ContextGL()->Flush();
   EXPECT_TRUE(client_.did_lose_output_surface_called());
 
   output_surface_.ReleaseGL();
   EXPECT_FALSE(output_surface_.context_provider());
 }
 
 TEST_F(OutputSurfaceTestInitializeNewContext3d, Context3dMakeCurrentFails) {
   BindOutputSurface();
 
   context_provider_->UnboundTestContext3d()->set_context_lost(true);
@@ skipping 250 matching lines @@
   EXPECT_EQ(1, software_output_device->ensure_backbuffer_count());
   EXPECT_EQ(0, software_output_device->discard_backbuffer_count());
   output_surface.DiscardBackbuffer();
 
   EXPECT_EQ(1, software_output_device->ensure_backbuffer_count());
   EXPECT_EQ(1, software_output_device->discard_backbuffer_count());
 }
 
 }  // namespace
 }  // namespace cc