Move ExtensionHost into extensions namespace

chrome/browser/content_settings/content_settings_platform_app_provider.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/content_settings/content_settings_platform_app_provider.h"
 
 #include "chrome/browser/content_settings/content_settings_rule.h"
 #include "chrome/browser/extensions/extension_host.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/common/chrome_notification_types.h"
@@ skipping 49 matching lines @@
 }
 
 void PlatformAppProvider::ClearAllContentSettingsRules(
     ContentSettingsType content_type) {}
 
 void PlatformAppProvider::Observe(int type,
                                   const content::NotificationSource& source,
                                   const content::NotificationDetails& details) {
   switch (type) {
     case chrome::NOTIFICATION_EXTENSION_HOST_CREATED: {
-      const ExtensionHost* host =
-          content::Details<ExtensionHost>(details).ptr();
+      const extensions::ExtensionHost* host =
+          content::Details<extensions::ExtensionHost>(details).ptr();
       if (host->extension()->is_platform_app())
         SetContentSettingForExtension(host->extension(), CONTENT_SETTING_BLOCK);
       break;
     }
     case chrome::NOTIFICATION_EXTENSION_LOADED: {
       const extensions::Extension* extension =
           content::Details<extensions::Extension>(details).ptr();
       if (extension->plugins().size() > 0)
         SetContentSettingForExtension(extension, CONTENT_SETTING_ALLOW);
       break;
@@ skipping 42 matching lines @@
                           Value::CreateIntegerValue(setting));
     }
   }
   NotifyObservers(primary_pattern,
                   secondary_pattern,
                   CONTENT_SETTINGS_TYPE_PLUGINS,
                   ResourceIdentifier(""));
 }
 
 }  // namespace content_settings