Revert of Don't choose a background process when choosing a process for starting a Service Worker.

content/browser/renderer_host/render_process_host_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 CONTENT_BROWSER_RENDERER_HOST_RENDER_PROCESS_HOST_IMPL_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_PROCESS_HOST_IMPL_H_
 
 #include <map>
 #include <queue>
 #include <string>
@@ skipping 247 matching lines @@
   // to the Worker in this renderer process has changed.
   // It is only called when "enable-embedded-shared-worker" flag is set.
   void IncrementWorkerRefCount();
   void DecrementWorkerRefCount();
 
   void GetAudioOutputControllers(
       const GetAudioOutputControllersCallback& callback) const override;
 
   BluetoothDispatcherHost* GetBluetoothDispatcherHost();
 
-  bool backgrounded() const { return backgrounded_; };
-
  protected:
   // A proxy for our IPC::Channel that lives on the IO thread (see
   // browser_process.h)
   scoped_ptr<IPC::ChannelProxy> channel_;
 
   // True if fast shutdown has been performed on this RPH.
   bool fast_shutdown_started_;
 
   // True if we've posted a DeleteTask and will be deleted soon.
   bool deleting_soon_;
@@ skipping 217 matching lines @@
 #endif
 
   base::WeakPtrFactory<RenderProcessHostImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderProcessHostImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_PROCESS_HOST_IMPL_H_