Create RenderFrame/RenderFrameHost for the main frame of a page.

This CL is the first in a series that will move frame specific functionality from RenderView/RenderViewHost to RenderFrame/RenderFrameHost. In this change, I'm only creating the objects for the top level frame and keeping them as members of RenderView/RenderViewHost for now.

BUG=245126

Review URL: https://chromiumcodereview.appspot.com/16032007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@203500 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 2af13f8..008162e2 100644
--- a/content/browser/web_contents/web_contents_impl.h
+++ b/content/browser/web_contents/web_contents_impl.h
@@ -420,6 +420,7 @@
   virtual void LostMouseLock() OVERRIDE;
   virtual void CreateNewWindow(
       int route_id,
+      int main_frame_route_id,
       const ViewHostMsg_CreateWindow_Params& params,
       SessionStorageNamespace* session_storage_namespace) OVERRIDE;
   virtual void CreateNewWidget(int route_id,