Move a bunch more code into the content namespace.

content/worker/worker_thread.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_WORKER_WORKER_THREAD_H_
 #define CONTENT_WORKER_WORKER_THREAD_H_
 
 #include <set>
 
 #include "content/common/child_thread.h"
 
-class WebDatabaseObserverImpl;
 struct WorkerProcessMsg_CreateWorker_Params;
 
 namespace content {
 class AppCacheDispatcher;
 class DBMessageFilter;
 class IndexedDBMessageFilter;
+class WebDatabaseObserverImpl;
 class WebSharedWorkerStub;
 class WorkerWebKitPlatformSupportImpl;
 
 class WorkerThread : public ChildThread {
  public:
   WorkerThread();
   virtual ~WorkerThread();
 
   // Returns the one worker thread.
   static WorkerThread* current();
@@ skipping 20 matching lines @@
 
   typedef std::set<WebSharedWorkerStub*> WorkerStubsList;
   WorkerStubsList worker_stubs_;
 
   DISALLOW_COPY_AND_ASSIGN(WorkerThread);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_WORKER_WORKER_THREAD_H_