[Media Galleries] Lazily initialize the storage monitor.

chrome/browser/chrome_browser_main_mac.mm

 // 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 "chrome/browser/chrome_browser_main_mac.h"
 
 #import <Cocoa/Cocoa.h>
 #include <sys/sysctl.h>
 
 #include "base/command_line.h"
@@ skipping 268 matching lines @@
   [[NSUserDefaults standardUserDefaults]
       setObject:@"NO" forKey:@"NSTreatUnknownArgumentsAsOpen"];
 }
 
 void ChromeBrowserMainPartsMac::PreProfileInit() {
   storage_monitor_.reset(new chrome::StorageMonitorMac());
 
   ChromeBrowserMainPartsPosix::PreProfileInit();
 }
 
-void ChromeBrowserMainPartsMac::PostProfileInit() {
-  storage_monitor_->Init();
-
-  ChromeBrowserMainPartsPosix::PostProfileInit();
-}
-
 void ChromeBrowserMainPartsMac::DidEndMainMessageLoop() {
   AppController* appController = [NSApp delegate];
   [appController didEndMainMessageLoop];
 }