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+// 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_