Simplify RenderFrameImpl::ResolveOpener()

content/renderer/render_frame_proxy.h

 // Copyright 2014 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.
 
 #ifndef CONTENT_RENDERER_RENDER_FRAME_PROXY_H_
 #define CONTENT_RENDERER_RENDER_FRAME_PROXY_H_
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "content/common/content_export.h"
@@ skipping 59 matching lines @@
       RenderFrameImpl* frame_to_replace,
       int routing_id,
       blink::WebTreeScopeType scope);
 
   // This method should be used to create a RenderFrameProxy, when there isn't
   // an existing RenderFrame. It should be called to construct a local
   // representation of a RenderFrame that has been created in another process --
   // for example, after a cross-process navigation or after the addition of a
   // new frame local to some other process. |routing_id| will be the ID of the
   // newly created RenderFrameProxy. |render_view_routing_id| identifies the
-  // RenderView to be associated with this frame.  |opener_routing_id|, if
-  // valid, is the routing ID of the new frame's opener.  |parent_routing_id|
-  // is the routing ID of the RenderFrameProxy to which the new frame is
-  // parented.
+  // RenderView to be associated with this frame.  |opener|, if supplied, is the
+  // new frame's opener.  |parent_routing_id| is the routing ID of the
+  // RenderFrameProxy to which the new frame is parented.
   //
   // |parent_routing_id| always identifies a RenderFrameProxy (never a
   // RenderFrame) because a new child of a local frame should always start out
   // as a frame, not a proxy.
   static RenderFrameProxy* CreateFrameProxy(
       int routing_id,
       int render_view_routing_id,
-      int opener_routing_id,
+      blink::WebFrame* opener,
       int parent_routing_id,
       const FrameReplicationState& replicated_state);
 
   // Returns the RenderFrameProxy for the given routing ID.
   static RenderFrameProxy* FromRoutingID(int routing_id);
 
   // Returns the RenderFrameProxy given a WebFrame.
   static RenderFrameProxy* FromWebFrame(blink::WebFrame* web_frame);
 
   ~RenderFrameProxy() override;
@@ skipping 86 matching lines @@
 
   RenderViewImpl* render_view_;
   RenderWidget* render_widget_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderFrameProxy);
 };
 
 }  // namespace
 
 #endif  // CONTENT_RENDERER_RENDER_FRAME_PROXY_H_