Make RenderFrame(Host) own a RenderWidget(Host).

content/renderer/render_widget.cc

Index: content/renderer/render_widget.cc
diff --git a/content/renderer/render_widget.cc b/content/renderer/render_widget.cc
index 8cf0ae0735652ea30717f1baa56af0806975a309..7809c6db192881af4c344c259adc5655053f836e 100644
--- a/content/renderer/render_widget.cc
+++ b/content/renderer/render_widget.cc
@@ -448,6 +448,25 @@ RenderWidget* RenderWidget::Create(int32 opener_id,
 }
 
 // static
+RenderWidget* RenderWidget::CreateForFrame(
+    int routing_id, bool hidden, const blink::WebScreenInfo& screen_info) {

[nasko, 2014/10/01 16:37:14]

style: params need to be on separate lines each

[kenrb, 2014/10/01 19:27:51]

Done.

+  DCHECK(routing_id != MSG_ROUTING_NONE);
+  scoped_refptr<RenderWidget> widget(
+      new RenderWidget(blink::WebPopupTypeNone,
+                       screen_info,
+                       false,
+                       hidden,
+                       false));
+  widget->routing_id_ = routing_id;
+  //TODO(kenrb): Change CreateWebWidget to CreateWebFrameWidget before landing!
+  if (widget->DoInit(MSG_ROUTING_NONE,
+                     RenderWidget::CreateWebWidget(widget.get()),
+                     0))

[nasko, 2014/10/01 16:37:14]

nit: s/0/nullptr/

[kenrb, 2014/10/01 19:27:51]

Done.

+    return widget.get();

[nasko, 2014/10/01 16:37:14]

style: {} needed because the if clause spans multiple lines

[kenrb, 2014/10/01 19:27:51]

Done.

+  return NULL;
+}
+
+// static
 WebWidget* RenderWidget::CreateWebWidget(RenderWidget* render_widget) {
   switch (render_widget->popup_type_) {
     case blink::WebPopupTypeNone:  // Nothing to create.
@@ -480,7 +499,10 @@ bool RenderWidget::DoInit(int32 opener_id,
 
   webwidget_ = web_widget;
 
-  bool result = RenderThread::Get()->Send(create_widget_message);
+  bool result = true;
+  if (create_widget_message)
+    result = RenderThread::Get()->Send(create_widget_message);
+
   if (result) {
     RenderThread::Get()->AddRoute(routing_id_, this);
     // Take a reference on behalf of the RenderThread.  This will be balanced