Revert 164120 - content/browser: Move more files into the content namespace.

content/browser/cross_site_request_manager.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 CONTENT_BROWSER_CROSS_SITE_REQUEST_MANAGER_H_
 #define CONTENT_BROWSER_CROSS_SITE_REQUEST_MANAGER_H_
 
 #include <set>
 #include <utility>
 
 #include "base/basictypes.h"
 #include "base/synchronization/lock.h"
 
 template <typename T> struct DefaultSingletonTraits;
 
-namespace content {
-
 // CrossSiteRequestManager is used to handle bookkeeping for cross-site
 // requests and responses between the UI and IO threads.  Such requests involve
 // a transition from one RenderViewHost to another within WebContentsImpl, and
 // involve coordination with ResourceDispatcherHost.
 //
 // CrossSiteRequestManager is a singleton that may be used on any thread.
 //
 class CrossSiteRequestManager {
  public:
   // Returns the singleton instance.
@@ skipping 23 matching lines @@
   base::Lock lock_;
 
   // Set of (render_process_host_id, render_view_id) pairs of all
   // RenderViewHosts that have pending cross-site requests.  Used to pass
   // information about the RenderViewHosts between the UI and IO threads.
   RenderViewSet pending_cross_site_views_;
 
   DISALLOW_COPY_AND_ASSIGN(CrossSiteRequestManager);
 };
 
-}  // namespace content
-
 #endif  // CONTENT_BROWSER_CROSS_SITE_REQUEST_MANAGER_H_