Give the main frame a RenderWidget.

content/browser/renderer_host/render_widget_helper.cc

 // 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.
 
 #include "content/browser/renderer_host/render_widget_helper.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/lazy_instance.h"
 #include "base/posix/eintr_wrapper.h"
@@ skipping 84 matching lines @@
 
 void RenderWidgetHelper::OnResumeDeferredNavigation(
     const GlobalRequestID& request_id) {
   resource_dispatcher_host_->ResumeDeferredNavigation(request_id);
 }
 
 void RenderWidgetHelper::CreateNewWindow(
     const ViewHostMsg_CreateWindow_Params& params,
     bool no_javascript_access,
     base::ProcessHandle render_process,
-    int* route_id,
-    int* main_frame_route_id,
+    int32_t* route_id,
+    int32_t* main_frame_route_id,
+    int32_t* main_frame_widget_route_id,
     SessionStorageNamespace* session_storage_namespace) {
   if (params.opener_suppressed || no_javascript_access) {
     // If the opener is supppressed or script access is disallowed, we should
     // open the window in a new BrowsingInstance, and thus a new process. That
     // means the current renderer process will not be able to route messages to
     // it. Because of this, we will immediately show and navigate the window
     // in OnCreateWindowOnUI, using the params provided here.
     *route_id = MSG_ROUTING_NONE;
     *main_frame_route_id = MSG_ROUTING_NONE;
+    *main_frame_widget_route_id = MSG_ROUTING_NONE;
   } else {
     *route_id = GetNextRoutingID();
     *main_frame_route_id = GetNextRoutingID();
+    // TODO(avi): When RenderViewHostImpl has-a RenderWidgetHostImpl, this
+    // should be updated to give the widget a distinct routing ID.
+    // https://crbug.com/545684
+    *main_frame_widget_route_id = *route_id;
     // Block resource requests until the view is created, since the HWND might
     // be needed if a response ends up creating a plugin.
     resource_dispatcher_host_->BlockRequestsForRoute(
         render_process_id_, *route_id);
     resource_dispatcher_host_->BlockRequestsForRoute(
         render_process_id_, *main_frame_route_id);
   }
 
   BrowserThread::PostTask(
       BrowserThread::UI, FROM_HERE,
-      base::Bind(&RenderWidgetHelper::OnCreateWindowOnUI,
-                 this, params, *route_id, *main_frame_route_id,
+      base::Bind(&RenderWidgetHelper::OnCreateWindowOnUI, this, params,
+                 *route_id, *main_frame_route_id, *main_frame_widget_route_id,
                  make_scoped_refptr(session_storage_namespace)));
 }
 
 void RenderWidgetHelper::OnCreateWindowOnUI(
     const ViewHostMsg_CreateWindow_Params& params,
-    int route_id,
-    int main_frame_route_id,
+    int32_t route_id,
+    int32_t main_frame_route_id,
+    int32_t main_frame_widget_route_id,
     SessionStorageNamespace* session_storage_namespace) {
   RenderViewHostImpl* host =
       RenderViewHostImpl::FromID(render_process_id_, params.opener_id);
   if (host)
-    host->CreateNewWindow(route_id, main_frame_route_id, params,
-        session_storage_namespace);
+    host->CreateNewWindow(route_id, main_frame_route_id,
+                          main_frame_widget_route_id, params,
+                          session_storage_namespace);
 }
 
 void RenderWidgetHelper::OnResumeRequestsForView(int route_id) {
   resource_dispatcher_host_->ResumeBlockedRequestsForRoute(
       render_process_id_, route_id);
 }
 
 void RenderWidgetHelper::CreateNewWidget(int opener_id,
                                          blink::WebPopupType popup_type,
                                          int* route_id) {
@@ skipping 23 matching lines @@
 
 void RenderWidgetHelper::OnCreateFullscreenWidgetOnUI(int32 opener_id,
                                                       int32 route_id) {
   RenderViewHostImpl* host = RenderViewHostImpl::FromID(
       render_process_id_, opener_id);
   if (host)
     host->CreateNewFullscreenWidget(route_id);
 }
 
 }  // namespace content