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

content/browser/renderer_host/render_view_host_impl.cc

Index: content/browser/renderer_host/render_view_host_impl.cc
diff --git a/content/browser/renderer_host/render_view_host_impl.cc b/content/browser/renderer_host/render_view_host_impl.cc
index 4ab78219b05b96357fe8c08fc88f7de644de0d31..d880294ada6cd5b4fe4bd24e193e735c6bc916ea 100644
--- a/content/browser/renderer_host/render_view_host_impl.cc
+++ b/content/browser/renderer_host/render_view_host_impl.cc
@@ -159,6 +159,7 @@ RenderViewHostImpl::RenderViewHostImpl(
     RenderViewHostDelegate* delegate,
     RenderWidgetHostDelegate* widget_delegate,
     int routing_id,
+    int main_frame_routing_id,
     bool swapped_out,
     SessionStorageNamespace* session_storage)
     : RenderWidgetHostImpl(widget_delegate, instance->GetProcess(), routing_id),
@@ -172,6 +173,7 @@ RenderViewHostImpl::RenderViewHostImpl(
       is_swapped_out_(swapped_out),
       is_subframe_(false),
       main_frame_id_(-1),
+      main_frame_routing_id_(main_frame_routing_id),
       run_modal_reply_msg_(NULL),
       run_modal_opener_id_(MSG_ROUTING_NONE),
       is_waiting_for_beforeunload_ack_(false),
@@ -191,6 +193,12 @@ RenderViewHostImpl::RenderViewHostImpl(
   DCHECK(instance_);
   CHECK(delegate_);  // http://crbug.com/82827
 
+  if (main_frame_routing_id_ == MSG_ROUTING_NONE) {
+    main_frame_routing_id_ = GetProcess()->GetNextRoutingID();
+  }
+  main_render_frame_host_.reset(
+      new RenderFrameHostImpl(this, main_frame_routing_id_, is_swapped_out_));
+
   GetProcess()->EnableSendQueue();
 
   for (size_t i = 0; i < g_created_callbacks.Get().size(); i++)
@@ -253,6 +261,7 @@ bool RenderViewHostImpl::CreateRenderView(
       delegate_->GetRendererPrefs(GetProcess()->GetBrowserContext());
   params.web_preferences = delegate_->GetWebkitPrefs();
   params.view_id = GetRoutingID();
+  params.main_frame_routing_id = main_frame_routing_id_;
   params.surface_id = surface_id();
   params.session_storage_namespace_id = session_storage_namespace_->id();
   params.frame_name = frame_name;
@@ -1035,6 +1044,7 @@ bool RenderViewHostImpl::IsRenderView() const {
 
 void RenderViewHostImpl::CreateNewWindow(
     int route_id,
+    int main_frame_route_id,
     const ViewHostMsg_CreateWindow_Params& params,
     SessionStorageNamespace* session_storage_namespace) {
   ViewHostMsg_CreateWindow_Params validated_params(params);
@@ -1045,8 +1055,8 @@ void RenderViewHostImpl::CreateNewWindow(
   FilterURL(policy, GetProcess(), true,
             &validated_params.opener_security_origin);
 
-  delegate_->CreateNewWindow(route_id, validated_params,
-                             session_storage_namespace);
+  delegate_->CreateNewWindow(route_id, main_frame_route_id,
+                             validated_params, session_storage_namespace);
 }
 
 void RenderViewHostImpl::CreateNewWidget(int route_id,