Remove CreateGpuMemoryBufferFromClientId and plumbing

components/mus/surfaces/ozone_gpu_memory_buffer_manager.cc

 // Copyright 2016 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 "components/mus/surfaces/ozone_gpu_memory_buffer_manager.h"
 
 #include "components/mus/gles2/ozone_gpu_memory_buffer.h"
 #include "gpu/command_buffer/common/gpu_memory_buffer_support.h"
 #include "ui/gfx/buffer_types.h"
 
@@ skipping 15 matching lines @@
 
 std::unique_ptr<gfx::GpuMemoryBuffer>
 OzoneGpuMemoryBufferManager::CreateGpuMemoryBufferFromHandle(
     const gfx::GpuMemoryBufferHandle& handle,
     const gfx::Size& size,
     gfx::BufferFormat format) {
   NOTIMPLEMENTED();
   return nullptr;
 }
 
-std::unique_ptr<gfx::GpuMemoryBuffer>
-OzoneGpuMemoryBufferManager::CreateGpuMemoryBufferFromClientId(
-    int client_id,
-    const gfx::GpuMemoryBufferId& gpu_memory_buffer_id) {
-  NOTIMPLEMENTED();
-  return nullptr;
-}
-
 gfx::GpuMemoryBuffer*
 OzoneGpuMemoryBufferManager::GpuMemoryBufferFromClientBuffer(
     ClientBuffer buffer) {
   NOTIMPLEMENTED();
   return nullptr;
 }
 
 void OzoneGpuMemoryBufferManager::SetDestructionSyncToken(
     gfx::GpuMemoryBuffer* buffer,
     const gpu::SyncToken& sync_token) {
   NOTIMPLEMENTED();
 }
 
 }  // namespace mus