Revert of Refactor content/common/gpu into gpu/ipc/service

content/common/gpu/gpu_memory_tracking.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 CONTENT_COMMON_GPU_GPU_MEMORY_TRACKING_H_
+#define CONTENT_COMMON_GPU_GPU_MEMORY_TRACKING_H_
+
+#include <stdint.h>
+
+#include "base/process/process.h"
+#include "content/common/content_export.h"
+#include "gpu/command_buffer/service/memory_tracking.h"
+
+namespace content {
+
+class GpuMemoryManager;
+
+// All decoders in a context group point to a single GpuMemoryTrackingGroup,
+// which tracks GPU resource consumption for the entire context group.
+class CONTENT_EXPORT GpuMemoryTrackingGroup {
+ public:
+  ~GpuMemoryTrackingGroup();
+  void TrackMemoryAllocatedChange(uint64_t old_size, uint64_t new_size);
+  bool EnsureGPUMemoryAvailable(uint64_t size_needed);
+  base::ProcessId GetPid() const {
+    return pid_;
+  }
+  uint64_t GetSize() const { return size_; }
+  gpu::gles2::MemoryTracker* GetMemoryTracker() const {
+    return memory_tracker_;
+  }
+
+ private:
+  friend class GpuMemoryManager;
+
+  GpuMemoryTrackingGroup(base::ProcessId pid,
+                         gpu::gles2::MemoryTracker* memory_tracker,
+                         GpuMemoryManager* memory_manager);
+
+  base::ProcessId pid_;
+  uint64_t size_;
+
+  // Set and used only during the Manage function, to determine which
+  // non-surface clients should be hibernated.
+  bool hibernated_;
+
+  gpu::gles2::MemoryTracker* memory_tracker_;
+  GpuMemoryManager* memory_manager_;
+};
+
+}  // namespace content
+
+#endif  // CONTENT_COMMON_GPU_GPU_MEMORY_TRACKING_H_