Disable media device attach intent.

chrome/browser/ui/browser.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/ui/browser.h"
 
 #if defined(OS_WIN)
 #include <windows.h>
 #include <shellapi.h>
 #endif  // OS_WIN
@@ skipping 402 matching lines @@
   profile_pref_registrar_.Add(prefs::kHomePage, this);
 
   BrowserList::AddBrowser(this);
 
   // NOTE: These prefs all need to be explicitly destroyed in the destructor
   // or you'll get a nasty surprise when you run the incognito tests.
   encoding_auto_detect_.Init(prefs::kWebKitUsesUniversalDetector,
                              profile_->GetPrefs(), NULL);
 
   instant_controller_.reset(new chrome::BrowserInstantController(this));
+
+#if 0
+  // Disabled for M22. See http://crbug.com/144326.
   device_attached_intent_source_.reset(
       new DeviceAttachedIntentSource(this, (this)));
+#endif
 
   UpdateBookmarkBarState(BOOKMARK_BAR_STATE_CHANGE_INIT);
 
   FilePath profile_path = profile_->GetPath();
   ProfileMetrics::LogProfileLaunch(profile_path);
 
   window_ = params.window ? params.window : CreateBrowserWindow(this);
 
   // TODO(beng): move to BrowserFrameWin.
 #if defined(OS_WIN) && !defined(USE_AURA)
@@ skipping 1873 matching lines @@
   if (contents && !allow_js_access) {
     contents->web_contents()->GetController().LoadURL(
         target_url,
         content::Referrer(),
         content::PAGE_TRANSITION_LINK,
         std::string());  // No extra headers.
   }
 
   return contents != NULL;
 }