Remove memory_watcher tool as well as --memory-profile command line flag.

chrome/common/chrome_switches.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.
 
 // Defines all the command-line switches used by Chrome.
 
 #ifndef CHROME_COMMON_CHROME_SWITCHES_H_
 #define CHROME_COMMON_CHROME_SWITCHES_H_
 
 #include "build/build_config.h"
@@ skipping 218 matching lines @@
 extern const char kLoadComponentExtension[];
 extern const char kLoadExtension[];
 extern const char kMalwareInterstitialVersionV2[];
 extern const char kMalwareInterstitialVersionV3[];
 extern const char kMakeDefaultBrowser[];
 extern const char kSupervisedUserId[];
 extern const char kSupervisedUserSyncToken[];
 extern const char kManualEnhancedBookmarks[];
 extern const char kManualEnhancedBookmarksOptout[];
 extern const char kMediaCacheSize[];
-extern const char kMemoryProfiling[];
 extern const char kMessageLoopHistogrammer[];
 extern const char kMetricsRecordingOnly[];
 extern const char kNetLogLevel[];
 extern const char kNoDefaultBrowserCheck[];
 extern const char kNoDisplayingInsecureContent[];
 extern const char kNoEvents[];
 extern const char kNoExperiments[];
 extern const char kNoFirstRun[];
 extern const char kNoNetworkProfileWarning[];
 extern const char kNoProxyServer[];
@@ skipping 157 matching lines @@
 #endif
 
 bool SettingsWindowEnabled();
 
 // DON'T ADD RANDOM STUFF HERE. Put it in the main section above in
 // alphabetical order, or in one of the ifdefs (also in order in each section).
 
 }  // namespace switches
 
 #endif  // CHROME_COMMON_CHROME_SWITCHES_H_