Start using RenderFrameProxyHost objects.

content/browser/frame_host/frame_tree.h

 // Copyright 2013 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_BROWSER_FRAME_HOST_FRAME_TREE_H_
 #define CONTENT_BROWSER_FRAME_HOST_FRAME_TREE_H_
 
 #include <string>
 
 #include "base/callback.h"
@@ skipping 53 matching lines @@
   // top-down and visits a node before adding its children to the queue, making
   // it safe to remove children during the callback.
   void ForEach(const base::Callback<bool(FrameTreeNode*)>& on_node) const;
 
   // Frame tree manipulation routines.
   RenderFrameHostImpl* AddFrame(FrameTreeNode* parent,
                                 int new_routing_id,
                                 const std::string& frame_name);
   void RemoveFrame(FrameTreeNode* child);
 
+  // This method walks the entire frame tree and creates a RenderFrameProxyHost
+  // for the given |site_instance| in each node except the |source| one --
+  // the source will have a RenderFrameHost. It assumes that no frame tree
+  // nodes already have RenderFrameProxyHost for the given |site_instance|.
+  void CreateProxiesForSiteInstance(
+      FrameTreeNode* source,
+      SiteInstance* site_instance);
+
   // Clears process specific-state after a main frame process swap.
   // This destroys most of the frame tree but retains the root node so that
   // navigation state may be kept on it between process swaps. Used to
   // support bookkeeping for top-level navigations.
   // TODO(creis): Look into how we can remove the need for this method.
   void ResetForMainFrameSwap();
 
   // Update the frame tree after a process exits.  Any nodes currently using the
   // given |render_view_host| will lose all their children.
   // TODO(creis): This should take a RenderProcessHost once RenderFrameHost
   // knows its process.  Until then, we would just be asking the RenderViewHost
   // for its process, so we'll skip that step.
   void RenderProcessGone(RenderViewHost* render_view_host);
 
   // Convenience accessor for the main frame's RenderFrameHostImpl.
   RenderFrameHostImpl* GetMainFrame() const;
 
   // Returns the focused frame.
   FrameTreeNode* GetFocusedFrame();
 
   // Sets the focused frame.
   void SetFocusedFrame(FrameTreeNode* node);
 
   // Allows a client to listen for frame removal.  The listener should expect
   // to receive the RenderViewHostImpl containing the frame and the renderer-
   // specific frame routing ID of the removed frame.
   void SetFrameRemoveListener(
       const base::Callback<void(RenderFrameHost*)>& on_frame_removed);
 
-  // Creates a RenderViewHost for a new main frame RenderFrameHost in the given
+  // Creates a RenderViewHost for a new RenderFrameHost in the given
   // |site_instance|.  The RenderViewHost will have its Shutdown method called
   // when all of the RenderFrameHosts using it are deleted.
-  RenderViewHostImpl* CreateRenderViewHostForMainFrame(
-      SiteInstance* site_instance,
-      int routing_id,
-      int main_frame_routing_id,
-      bool swapped_out,
-      bool hidden);
+  RenderViewHostImpl* CreateRenderViewHost(SiteInstance* site_instance,
+                                           int routing_id,
+                                           int main_frame_routing_id,
+                                           bool swapped_out,
+                                           bool hidden);
 
-  // Returns the existing RenderViewHost for a new subframe RenderFrameHost.
+  // Returns the existing RenderViewHost for a new RenderFrameHost.
   // There should always be such a RenderViewHost, because the main frame
   // RenderFrameHost for each SiteInstance should be created before subframes.
-  RenderViewHostImpl* GetRenderViewHostForSubFrame(SiteInstance* site_instance);
+  RenderViewHostImpl* GetRenderViewHost(SiteInstance* site_instance);
 
   // Keeps track of which RenderFrameHosts are using each RenderViewHost.  When
   // the number drops to zero, we call Shutdown on the RenderViewHost.
   void RegisterRenderFrameHost(RenderFrameHostImpl* render_frame_host);
   void UnregisterRenderFrameHost(RenderFrameHostImpl* render_frame_host);
 
  private:
   typedef base::hash_map<int, RenderViewHostImpl*> RenderViewHostMap;
   typedef std::multimap<int, RenderViewHostImpl*> RenderViewHostMultiMap;
 
@@ skipping 26 matching lines @@
   int64 focused_frame_tree_node_id_;
 
   base::Callback<void(RenderFrameHost*)> on_frame_removed_;
 
   DISALLOW_COPY_AND_ASSIGN(FrameTree);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_FRAME_HOST_FRAME_TREE_H_