Adds chrome.memoryBenchmarking.heapProfilerDump for the browser process.

content/browser/renderer_host/memory_benchmark_message_filter.cc

Index: content/browser/renderer_host/memory_benchmark_message_filter.cc
diff --git a/content/browser/renderer_host/memory_benchmark_message_filter.cc b/content/browser/renderer_host/memory_benchmark_message_filter.cc
new file mode 100644
index 0000000000000000000000000000000000000000..d559852894082408b3da4e65b6595e2cd720fc89
--- /dev/null
+++ b/content/browser/renderer_host/memory_benchmark_message_filter.cc
@@ -0,0 +1,42 @@
+// 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.
+
+#include "content/browser/renderer_host/memory_benchmark_message_filter.h"
+
+#include "content/common/memory_benchmark_messages.h"
+
+#if defined(USE_TCMALLOC) && (defined(OS_LINUX) || defined(OS_ANDROID))
+
+#include "third_party/tcmalloc/chromium/src/gperftools/heap-profiler.h"
+
+namespace content {
+
+MemoryBenchmarkMessageFilter::MemoryBenchmarkMessageFilter() {
+}
+
+bool MemoryBenchmarkMessageFilter::OnMessageReceived(
+    const IPC::Message& message,
+    bool* message_was_ok) {
+  bool handled = true;
+  IPC_BEGIN_MESSAGE_MAP_EX(MemoryBenchmarkMessageFilter,
+                           message,
+                           *message_was_ok)
+    IPC_MESSAGE_HANDLER(MemoryBenchmarkHostMsg_HeapProfilerDump,
+                        OnHeapProfilerDump)
+    IPC_MESSAGE_UNHANDLED(handled = false)
+  IPC_END_MESSAGE_MAP()
+  return handled;
+}
+
+MemoryBenchmarkMessageFilter::~MemoryBenchmarkMessageFilter() {
+}
+
+void MemoryBenchmarkMessageFilter::OnHeapProfilerDump(
+    const std::string& reason) {
+  ::HeapProfilerDump(reason.c_str());
+}
+
+}  // namespace content
+
+#endif  // defined(USE_TCMALLOC) && (defined(OS_LINUX) || defined(OS_ANDROID))