OOPIF: History navigations for new child frames.

content/browser/frame_host/navigation_entry_impl.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_NAVIGATION_ENTRY_IMPL_H_
 #define CONTENT_BROWSER_FRAME_HOST_NAVIGATION_ENTRY_IMPL_H_
 
 #include "base/basictypes.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_vector.h"
@@ skipping 174 matching lines @@
                              int64 document_sequence_number,
                              SiteInstanceImpl* site_instance,
                              const GURL& url,
                              const Referrer& referrer,
                              const PageState& page_state);
 
   // Returns the FrameNavigationEntry corresponding to |frame_tree_node|, if
   // there is one in this NavigationEntry.
   FrameNavigationEntry* GetFrameEntry(FrameTreeNode* frame_tree_node) const;
 
+  // Returns the FrameNavigationEntry corresponding to the frame with the given
+  // |unique_name|, if any. This is useful when the FrameTreeNode cannot be used
+  // to find the entry, such as for a newly created subframe in a history
+  // navigation. Callers should update the FrameTreeNode ID of the entry so that
+  // it can be found with |GetFrameEntry| above.
+  // TODO(creis): Generate or verify the unique_name in the browser process.
+  FrameNavigationEntry* GetFrameEntryByUniqueName(
+      const std::string& unique_name) const;
+
   void set_unique_id(int unique_id) {
     unique_id_ = unique_id;
   }
 
   // The SiteInstance represents which pages must share processes. This is a
   // reference counted pointer to a shared SiteInstance.
   //
   // Note that the SiteInstance should usually not be changed after it is set,
   // but this may happen if the NavigationEntry was cloned and needs to use a
   // different SiteInstance.
@@ skipping 274 matching lines @@
   // persisted, unless specific data is taken out/put back in at save/restore
   // time (see TabNavigation for an example of this).
   std::map<std::string, base::string16> extra_data_;
 
   DISALLOW_COPY_AND_ASSIGN(NavigationEntryImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_FRAME_HOST_NAVIGATION_ENTRY_IMPL_H_