allocator cleanup: remove memory benchmarking extension

content/browser/renderer_host/memory_benchmark_message_filter.h

Index: content/browser/renderer_host/memory_benchmark_message_filter.h
diff --git a/content/browser/renderer_host/memory_benchmark_message_filter.h b/content/browser/renderer_host/memory_benchmark_message_filter.h
deleted file mode 100644
index 0bafa73b49ec789018202f4947d9f5de2a9c7131..0000000000000000000000000000000000000000
--- a/content/browser/renderer_host/memory_benchmark_message_filter.h
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2013 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_BROWSER_RENDERER_HOST_MEMORY_BENCHMARK_MESSAGE_FILTER_H_
-#define CONTENT_BROWSER_RENDERER_HOST_MEMORY_BENCHMARK_MESSAGE_FILTER_H_
-
-#include <string>
-
-#include "base/macros.h"
-#include "content/public/browser/browser_message_filter.h"
-
-namespace content {
-
-class MemoryBenchmarkMessageFilter : public BrowserMessageFilter {
- public:
-  MemoryBenchmarkMessageFilter();
-
-  bool OnMessageReceived(const IPC::Message& message) override;
-
- private:
-  ~MemoryBenchmarkMessageFilter() override;
-
-  void OnHeapProfilerDump(const std::string& reason);
-
-  DISALLOW_COPY_AND_ASSIGN(MemoryBenchmarkMessageFilter);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_BROWSER_RENDERER_HOST_MEMORY_BENCHMARK_MESSAGE_FILTER_H_