gpu: Remove Echo and SwapCompletion GL interfacess

gpu/command_buffer/client/client_test_helper.h

 // Copyright (c) 2012 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.
 
 // Helper classes for implementing gpu client side unit tests.
 
 #ifndef GPU_COMMAND_BUFFER_CLIENT_CLIENT_TEST_HELPER_H_
 #define GPU_COMMAND_BUFFER_CLIENT_CLIENT_TEST_HELPER_H_
 
 #include "base/compiler_specific.h"
@@ skipping 81 matching lines @@
                gfx::GpuMemoryBuffer*(size_t width,
                                      size_t height,
                                      unsigned internalformat,
                                      unsigned usage,
                                      int32* id));
   MOCK_METHOD1(DestroyGpuMemoryBuffer, void(int32 id));
   MOCK_METHOD0(InsertSyncPoint, uint32());
   MOCK_METHOD0(InsertFutureSyncPoint, uint32());
   MOCK_METHOD1(RetireSyncPoint, void(uint32 id));
   MOCK_METHOD2(SignalSyncPoint, void(uint32 id, const base::Closure& callback));
-  MOCK_METHOD1(Echo, void(const base::Closure& callback));
-
   MOCK_METHOD2(SignalQuery, void(uint32 query, const base::Closure& callback));
   MOCK_METHOD1(SetSurfaceVisible, void(bool visible));
   MOCK_METHOD1(CreateStreamTexture, uint32(uint32));
 
  private:
   DISALLOW_COPY_AND_ASSIGN(MockClientGpuControl);
 };
 
 }  // namespace gpu
 
 #endif  // GPU_COMMAND_BUFFER_CLIENT_CLIENT_TEST_HELPER_H_