Make out of process iframes draw when flag enabled.

This patch provides the final pieces to allow out of process iframes
to render in their embedding page when running under --site-per-process.

The --force-compositing-mode is also required unless using Aura.

BrowserPluginCompositingHelper has been renamed to
ChildFrameCompositingHelper and is now being used for both purposes.
The split code paths within the helper class will be merged when
BrowserPlugin is converted to use RenderFrame for IPC routing.

[email protected]
BUG=325803

Review URL: https://codereview.chromium.org/136953003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@246682 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/content/browser/web_contents/web_contents_impl.h b/content/browser/web_contents/web_contents_impl.h
index f5cfd31..54c5545 100644
--- a/content/browser/web_contents/web_contents_impl.h
+++ b/content/browser/web_contents/web_contents_impl.h
@@ -491,7 +491,9 @@
   // RenderFrameHostManager::Delegate ------------------------------------------
 
   virtual bool CreateRenderViewForRenderManager(
-      RenderViewHost* render_view_host, int opener_route_id) OVERRIDE;
+      RenderViewHost* render_view_host,
+      int opener_route_id,
+      CrossProcessFrameConnector* frame_connector) OVERRIDE;
   virtual void BeforeUnloadFiredFromRenderManager(
       bool proceed, const base::TimeTicks& proceed_time,
       bool* proceed_to_fire_unload) OVERRIDE;