Move Extension into extensions namespace

chrome/browser/extensions/extension_debugger_api.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.
 
 // Implements the Chrome Extensions Debugger API.
 
 #include "chrome/browser/extensions/extension_debugger_api.h"
 
 #include <map>
 #include <set>
@@ skipping 251 matching lines @@
         extension_id_, keys::kOnDetach, json_args, profile, GURL());
   }
 }
 
 void ExtensionDevToolsClientHost::Observe(
     int type,
     const content::NotificationSource& source,
     const content::NotificationDetails& details) {
   if (type == chrome::NOTIFICATION_EXTENSION_UNLOADED) {
     std::string id =
-        content::Details<UnloadedExtensionInfo>(details)->extension->id();
+        content::Details<extensions::UnloadedExtensionInfo>(details)->
+            extension->id();
     if (id == extension_id_)
         Close();
   } else {
     DCHECK_EQ(chrome::NOTIFICATION_TAB_CONTENTS_INFOBAR_REMOVED, type);
     if (content::Details<InfoBarRemovedDetails>(details)->first ==
         infobar_delegate_) {
       infobar_delegate_ = NULL;
       SendDetachedEvent();
       Close();
     }
@@ skipping 203 matching lines @@
     return;
   }
 
   Value* result_body;
   if (dictionary->Get("result", &result_body))
     result_.reset(result_body->DeepCopy());
   else
     result_.reset(new DictionaryValue());
   SendResponse(true);
 }