DRAFT CL: Add FrameNavigationEntry and track subframe session histories.

content/browser/web_contents/web_contents_impl.h

 // 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.
 
 #ifndef CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_IMPL_H_
 #define CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_IMPL_H_
 
 #include <map>
 #include <set>
 #include <string>
@@ skipping 485 matching lines @@
   SessionStorageNamespace* GetSessionStorageNamespace(
       SiteInstance* instance) override;
   SessionStorageNamespaceMap GetSessionStorageNamespaceMap() override;
   FrameTree* GetFrameTree() override;
   void SetIsVirtualKeyboardRequested(bool requested) override;
   bool IsVirtualKeyboardRequested() override;
 
 
   // NavigatorDelegate ---------------------------------------------------------
 
+  FrameTreeNode* GetFrameTreeRoot() override;
   void DidStartProvisionalLoad(RenderFrameHostImpl* render_frame_host,
                                const GURL& validated_url,
                                bool is_error_page,
                                bool is_iframe_srcdoc) override;
   void DidStartNavigationTransition(
       RenderFrameHostImpl* render_frame_host) override;
   void DidFailProvisionalLoadWithError(
       RenderFrameHostImpl* render_frame_host,
       const FrameHostMsg_DidFailProvisionalLoadWithError_Params& params)
       override;
@@ skipping 105 matching lines @@
   // Updates the max page ID for the given SiteInstance in this WebContentsImpl
   // to be at least |page_id|.
   void UpdateMaxPageIDForSiteInstance(SiteInstance* site_instance,
                                       int32 page_id) override;
 
   // Copy the current map of SiteInstance ID to max page ID from another tab.
   // This is necessary when this tab adopts the NavigationEntries from
   // |web_contents|.
   void CopyMaxPageIDsFrom(WebContents* web_contents) override;
 
-  // Called by the NavigationController to cause the WebContentsImpl to navigate
-  // to the current pending entry. The NavigationController should be called
-  // back with RendererDidNavigate on success or DiscardPendingEntry on failure.
-  // The callbacks can be inside of this function, or at some future time.
-  //
-  // The entry has a PageID of -1 if newly created (corresponding to navigation
-  // to a new URL).
-  //
-  // If this method returns false, then the navigation is discarded (equivalent
-  // to calling DiscardPendingEntry on the NavigationController).
-  bool NavigateToPendingEntry(
-      NavigationController::ReloadType reload_type) override;
-
   // Sets the history for this WebContentsImpl to |history_length| entries, with
   // an offset of |history_offset|.
   void SetHistoryOffsetAndLength(int history_offset,
                                  int history_length) override;
 
   // Called by InterstitialPageImpl when it creates a RenderFrameHost.
   void RenderFrameForInterstitialPageCreated(
       RenderFrameHost* render_frame_host) override;
 
   // Sets the passed interstitial as the currently showing interstitial.
@@ skipping 628 matching lines @@
   // Adds/removes a callback called on creation of each new WebContents.
   static void AddCreatedCallbackForTesting(const CreatedCallback& callback);
   static void RemoveCreatedCallbackForTesting(const CreatedCallback& callback);
 
   DISALLOW_COPY_AND_ASSIGN(FriendZone);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_IMPL_H_