Remove GPU memory UMAs

gpu/ipc/common/gpu_memory_uma_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_GPU_MEMORY_UMA_STATS_H_
-#define GPU_IPC_COMMON_GPU_MEMORY_UMA_STATS_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-namespace gpu {
-
-// Memory usage statistics send periodically to the browser process to report
-// in UMA histograms if the GPU process crashes.
-// 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 GPUMemoryUmaStats {
-  GPUMemoryUmaStats()
-      : bytes_allocated_current(0),
-        bytes_allocated_max(0),
-        context_group_count(0) {}
-
-  // The number of bytes currently allocated.
-  uint64_t bytes_allocated_current;
-
-  // The maximum number of bytes ever allocated at once.
-  uint64_t bytes_allocated_max;
-
-  // The number of context groups.
-  uint32_t context_group_count;
-};
-
-}  // namespace gpu
-
-#endif  // GPU_IPC_COMMON_GPU_MEMORY_UMA_STATS_H_