Move content's a plugin, ppapi_plugin, utility, and worker subdirectories to the content namespace.

content/worker/worker_webapplicationcachehost_impl.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_WORKER_WORKER_WEBAPPLICATIONCACHEHOST_IMPL_H_
 #define CHROME_WORKER_WORKER_WEBAPPLICATIONCACHEHOST_IMPL_H_
 
 #include "webkit/appcache/web_application_cache_host_impl.h"
 
+namespace content {
+
 // Information used to construct and initialize an appcache host
 // for a worker.
 struct WorkerAppCacheInitInfo {
   int parent_process_id;
   int64 main_resource_appcache_id;  // Only valid for shared workers.
 
   WorkerAppCacheInitInfo()
       : parent_process_id(0),
         main_resource_appcache_id(0) {
   }
@@ skipping 21 matching lines @@
   virtual void didReceiveDataForMainResource(const char* data, int len);
   virtual void didFinishLoadingMainResource(bool success);
 
   // Cache selection is also different for workers. We know at construction
   // time what cache to select and do so then.
   // These overrides are stubbed out.
   virtual void selectCacheWithoutManifest();
   virtual bool selectCacheWithManifest(const WebKit::WebURL& manifestURL);
 };
 
+}  // namespace content
+
 #endif  // CHROME_WORKER_WORKER_WEBAPPLICATIONCACHEHOST_IMPL_H_