Delete blink::WebGraphicsContext3D and cc_blink::ContextProviderWebContext

gpu/ipc/client/gpu_context_tests.h

 // 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.
 
 // These tests are run twice:
-// Once in a gpu test with an in-process WebGraphicsContext3D.
-// Once in a browsertest with a gpu-process WebGraphicsContext3D.
+// Once in a gpu test with an in-process command buffer.
+// Once in a browsertest with an out-of-process command buffer and gpu-process.
 
 #include "base/bind.h"
 #include "base/run_loop.h"
 #include "gpu/GLES2/gl2extchromium.h"
 #include "gpu/command_buffer/client/context_support.h"
 #include "gpu/command_buffer/client/gles2_interface.h"
 #include "gpu/command_buffer/common/sync_token.h"
 
 namespace {
 
@@ skipping 111 matching lines @@
   // Signalling something that doesn't exist should run the callback
   // immediately.
   TestSignalQuery(928729087);
   TestSignalQuery(928729086);
   TestSignalQuery(928729085);
   TestSignalQuery(928729083);
   TestSignalQuery(928729082);
   TestSignalQuery(928729081);
 };
 };