Move WebstoreInstaller, WebstoreInlineInstaller, related in extensions namespace

chrome/browser/extensions/webstore_installer.h

 // 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.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_WEBSTORE_INSTALLER_H_
 #define CHROME_BROWSER_EXTENSIONS_WEBSTORE_INSTALLER_H_
 
 #include <string>
 #include <vector>
 
 #include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/values.h"
 #include "content/public/browser/download_id.h"
 #include "content/public/browser/download_item.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "net/base/net_errors.h"
 #include "googleurl/src/gurl.h"
 
 class FilePath;
 class Profile;
 
 namespace content {
 class NavigationController;
 }
 
+namespace extensions {
+
 // Downloads and installs extensions from the web store.
 class WebstoreInstaller : public content::NotificationObserver,
                           public content::DownloadItem::Observer,
                           public base::RefCounted<WebstoreInstaller> {
  public:
   enum Flag {
     FLAG_NONE = 0,
 
     // Inline installs trigger slightly different behavior (install source
     // is different, download referrers are the item's page in the gallery).
@@ skipping 113 matching lines @@
   std::string id_;
   // The DownloadItem is owned by the DownloadManager and is valid from when
   // OnDownloadStarted is called (with no error) until the DownloadItem
   // transitions to state REMOVING.
   content::DownloadItem* download_item_;
   int flags_;
   scoped_ptr<Approval> approval_;
   GURL download_url_;
 };
 
+}  // namespace extensions
+
 #endif  // CHROME_BROWSER_EXTENSIONS_WEBSTORE_INSTALLER_H_