Add a benchmarking_extension API to call TCMalloc's HeapProfilerDump().

content/public/common/content_switches.cc

 // 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.
 
 #include "content/public/common/content_switches.h"
 
 namespace switches {
 
 // By default, file:// URIs cannot read other file:// URIs. This is an
 // override for developers who need the old behavior for testing.
@@ skipping 301 matching lines @@
 // Enable Text Service Framework(TSF) for text inputting instead of IMM32. This
 // flag is ignored on Metro environment.
 const char kEnableTextServicesFramework[] = "enable-text-services-framework";
 
 // Enable Gesture Tap Highlight
 const char kEnableGestureTapHighlight[]    = "enable-gesture-tap-highlight";
 
 // Enables the GPU benchmarking extension
 const char kEnableGpuBenchmarking[]         = "enable-gpu-benchmarking";
 
+// Enables the memory benchmarking extension
+const char kEnableMemoryBenchmarking[]      = "enable-memory-benchmarking";
+
 // Force logging to be enabled.  Logging is disabled by default in release
 // builds.
 const char kEnableLogging[]                 = "enable-logging";
 
 // Disable Media Source API on <audio>/<video> elements.
 const char kDisableMediaSource[]             = "disable-media-source";
 
 // Disables using WebMediaPlayerMS for src of <audio>/<video> derived from
 // media stream.
 const char kDisableWebMediaPlayerMS[]       = "disable-web-media-player-ms";
@@ skipping 459 matching lines @@
     = "disable-fixed-position-creates-stacking-context";
 
 // Defer image decoding in WebKit until painting.
 const char kEnableDeferredImageDecoding[] = "enable-deferred-image-decoding";
 
 // Disables history navigation in response to horizontal overscroll.
 const char kDisableOverscrollHistoryNavigation[] =
     "disable-overscroll-history-navigation";
 
 }  // namespace switches