Unify the three places that patch font loading for PDFium on Windows.

content/child/child_process.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_CHILD_CHILD_PROCESS_H_
 #define CONTENT_CHILD_CHILD_PROCESS_H_
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/synchronization/waitable_event.h"
 #include "base/threading/thread.h"
 #include "content/common/content_export.h"
 
 namespace content {
-class ChildThread;
+class ChildThreadImpl;
 
 // Base class for child processes of the browser process (i.e. renderer and
 // plugin host). This is a singleton object for each child process.
 //
 // During process shutdown the following sequence of actions happens in
 // order.
 //
 // 1. ChildProcess::~ChildProcess() is called.
 //   2. Shutdown event is fired. Background threads should stop.
-//   3. ChildThread::Shutdown() is called. ChildThread is also deleted.
+//   3. ChildThreadImpl::Shutdown() is called. ChildThread is also deleted.
 //   4. IO thread is stopped.
 // 5. Main message loop exits.
 // 6. Child process is now fully stopped.
 //
-// Note: IO thread outlives the ChildThread object.
+// Note: IO thread outlives the ChildThreadImpl object.
 class CONTENT_EXPORT ChildProcess {
  public:
   // Child processes should have an object that derives from this class.
   // Normally you would immediately call set_main_thread after construction.
   ChildProcess();
   virtual ~ChildProcess();
 
   // May be NULL if the main thread hasn't been set explicitly.
-  ChildThread* main_thread();
+  ChildThreadImpl* main_thread();
 
   // Sets the object associated with the main thread of this process.
   // Takes ownership of the pointer.
-  void set_main_thread(ChildThread* thread);
+  void set_main_thread(ChildThreadImpl* thread);
 
   base::MessageLoop* io_message_loop() { return io_thread_.message_loop(); }
   base::MessageLoopProxy* io_message_loop_proxy() {
     return io_thread_.message_loop_proxy().get();
   }
 
   // A global event object that is signalled when the main thread's message
   // loop exits.  This gives background threads a way to observe the main
   // thread shutting down.  This can be useful when a background thread is
   // waiting for some information from the browser process.  If the browser
@@ skipping 20 matching lines @@
 
   // An event that will be signalled when we shutdown.
   base::WaitableEvent shutdown_event_;
 
   // The thread that handles IO events.
   base::Thread io_thread_;
 
   // NOTE: make sure that main_thread_ is listed after shutdown_event_, since
   // it depends on it (indirectly through IPC::SyncChannel).  Same for
   // io_thread_.
-  scoped_ptr<ChildThread> main_thread_;
+  scoped_ptr<ChildThreadImpl> main_thread_;
 
   DISALLOW_COPY_AND_ASSIGN(ChildProcess);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_CHILD_CHILD_PROCESS_H_