gpu: Move ContextProviderCommandBuffer into mus gpu client-lib.

content/common/gpu/client/command_buffer_metrics.h

Index: content/common/gpu/client/command_buffer_metrics.h
diff --git a/content/common/gpu/client/command_buffer_metrics.h b/content/common/gpu/client/command_buffer_metrics.h
deleted file mode 100644
index f508fa7d8aee6a83fd03493824d4281841418ace..0000000000000000000000000000000000000000
--- a/content/common/gpu/client/command_buffer_metrics.h
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright 2015 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.
-
-#ifndef CONTENT_COMMON_GPU_CLIENT_COMMAND_BUFFER_METRICS_H_
-#define CONTENT_COMMON_GPU_CLIENT_COMMAND_BUFFER_METRICS_H_
-
-#include <string>
-
-#include "gpu/command_buffer/common/constants.h"
-
-namespace content {
-namespace command_buffer_metrics {
-
-enum ContextType {
-  DISPLAY_COMPOSITOR_ONSCREEN_CONTEXT,
-  BROWSER_OFFSCREEN_MAINTHREAD_CONTEXT,
-  BROWSER_WORKER_CONTEXT,
-  RENDER_COMPOSITOR_CONTEXT,
-  RENDER_WORKER_CONTEXT,
-  RENDERER_MAINTHREAD_CONTEXT,
-  GPU_VIDEO_ACCELERATOR_CONTEXT,
-  OFFSCREEN_VIDEO_CAPTURE_CONTEXT,
-  OFFSCREEN_CONTEXT_FOR_WEBGL,
-  CONTEXT_TYPE_UNKNOWN,
-  MEDIA_CONTEXT,
-  BLIMP_RENDER_COMPOSITOR_CONTEXT,
-  BLIMP_RENDER_WORKER_CONTEXT,
-  OFFSCREEN_CONTEXT_FOR_TESTING = CONTEXT_TYPE_UNKNOWN,
-};
-
-std::string ContextTypeToString(ContextType type);
-
-void UmaRecordContextInitFailed(ContextType type);
-
-void UmaRecordContextLost(ContextType type,
-                          gpu::error::Error error,
-                          gpu::error::ContextLostReason reason);
-
-}  // namespace command_buffer_metrics
-}  // namespace content
-
-#endif  // CONTENT_COMMON_GPU_CLIENT_COMMAND_BUFFER_METRICS_H_