Revert of Mustash: move content::GPUVideoMemoryUsageStats to gpu::VideoMemoryUsageStats

gpu/ipc/common/memory_stats.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.
-
-#ifndef GPU_IPC_COMMON_MEMORY_STATS_H_
-#define GPU_IPC_COMMON_MEMORY_STATS_H_
-
-// Provides access to the GPU information for the system
-// on which chrome is currently running.
-
-#include <stddef.h>
-
-#include <map>
-
-#include "base/process/process.h"
-#include "gpu/gpu_export.h"
-
-namespace gpu {
-
-// Note: we use uint64_t instead of size_t for byte count because this struct
-// is sent over IPC which could span 32 & 64 bit processes.
-struct GPU_EXPORT VideoMemoryUsageStats {
-  VideoMemoryUsageStats();
-  ~VideoMemoryUsageStats();
-
-  struct GPU_EXPORT ProcessStats {
-    ProcessStats();
-    ~ProcessStats();
-
-    // The bytes of GPU resources accessible by this process
-    uint64_t video_memory;
-
-    // Set to true if this process' GPU resource count is inflated because
-    // it is counting other processes' resources (e.g, the GPU process has
-    // duplicate set to true because it is the aggregate of all processes)
-    bool has_duplicates;
-  };
-  typedef std::map<base::ProcessId, ProcessStats> ProcessMap;
-
-  // A map of processes to their GPU resource consumption
-  ProcessMap process_map;
-
-  // The total amount of GPU memory allocated at the time of the request.
-  uint64_t bytes_allocated;
-
-  // The maximum amount of GPU memory ever allocated at once.
-  uint64_t bytes_allocated_historical_max;
-};
-
-}  // namespace gpu
-
-#endif  // GPU_IPC_COMMON_MEMORY_STATS_H_