[Media Galleries] Lazily initialize the storage monitor.

chrome/browser/chrome_browser_main_linux.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 "chrome/browser/chrome_browser_main_linux.h"
 
 #if !defined(OS_CHROMEOS)
 #include "chrome/browser/storage_monitor/storage_monitor_linux.h"
 #include "content/public/browser/browser_thread.h"
 #endif
@@ skipping 115 matching lines @@
 #endif
 
 #if !defined(OS_CHROMEOS)
   const base::FilePath kDefaultMtabPath("/etc/mtab");
   storage_monitor_.reset(new chrome::StorageMonitorLinux(kDefaultMtabPath));
 #endif
 
   ChromeBrowserMainPartsPosix::PreProfileInit();
 }
 
-void ChromeBrowserMainPartsLinux::PostProfileInit() {
-#if !defined(OS_CHROMEOS)
-  storage_monitor_->Init();
-#endif
-
-  ChromeBrowserMainPartsPosix::PostProfileInit();
-}
-
 void ChromeBrowserMainPartsLinux::PostMainMessageLoopRun() {
   ChromeBrowserMainPartsPosix::PostMainMessageLoopRun();
 
 #if !defined(OS_CHROMEOS)
   // Delete it now. Otherwise the FILE thread would be gone when we try to
   // release it in the dtor and Valgrind would report a leak on almost every
   // single browser_test.
   storage_monitor_.reset();
 #endif
 }