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

chrome/common/chrome_switches.cc

Index: chrome/common/chrome_switches.cc
diff --git a/chrome/common/chrome_switches.cc b/chrome/common/chrome_switches.cc
index 041a0666df89c397566f37f1de6da3fcca2ed50d..45420ccc0d4aaa2e8d06025ab6301f462e21cd48 100644
--- a/chrome/common/chrome_switches.cc
+++ b/chrome/common/chrome_switches.cc
@@ -832,10 +832,6 @@ const char kManualEnhancedBookmarksOptout[] =
 // Forces the maximum disk space to be used by the media cache, in bytes.
 const char kMediaCacheSize[]                = "media-cache-size";
 
-// Enables dynamic loading of the Memory Profiler DLL, which will trace all
-// memory allocations during the run.
-const char kMemoryProfiling[]               = "memory-profile";
-
 // Enables histograming of tasks served by MessageLoop. See
 // about:histograms/Loop for results, which show frequency of messages on each
 // thread, including APC count, object signalling count, etc.