Create RenderFrameProxyHost at time of swap-out instead of commit.

content/content_renderer.gypi

 # 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.
 
 {
   'dependencies': [
     'content_common_mojo_bindings',
     '../gin/gin.gyp:gin',
     '../jingle/jingle.gyp:jingle_glue',
     '../media/media.gyp:media',
@@ skipping 432 matching lines @@
     'renderer/pepper/usb_key_code_conversion.cc',
     'renderer/pepper/usb_key_code_conversion_linux.cc',
     'renderer/pepper/usb_key_code_conversion_mac.cc',
     'renderer/pepper/usb_key_code_conversion_win.cc',
     'renderer/pepper/v8_var_converter.cc',
     'renderer/pepper/v8_var_converter.h',
     'renderer/push_messaging_dispatcher.cc',
     'renderer/push_messaging_dispatcher.h',
     'renderer/render_frame_impl.cc',
     'renderer/render_frame_impl.h',
+    'renderer/render_frame_proxy.cc',
+    'renderer/render_frame_proxy.h',
     'renderer/render_process.h',
     'renderer/render_process_impl.cc',
     'renderer/render_process_impl.h',
     'renderer/render_thread_impl.cc',
     'renderer/render_thread_impl.h',
     'renderer/render_view_impl.cc',
     'renderer/render_view_impl.h',
     'renderer/render_view_impl_android.cc',
     'renderer/render_view_impl_params.cc',
     'renderer/render_view_impl_params.h',
@@ skipping 318 matching lines @@
     }],
   ],
   'target_conditions': [
     ['OS=="android"', {
       'sources/': [
         ['include', '^renderer/render_view_linux\\.cc$'],
       ],
     }],
   ],
 }