DRAFT CL: Add FrameNavigationEntry and track subframe session histories.

content/browser/frame_host/render_frame_host_manager.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_RENDER_FRAME_HOST_MANAGER_H_
 #define CONTENT_BROWSER_FRAME_HOST_RENDER_FRAME_HOST_MANAGER_H_
 
 #include <list>
 
 #include "base/basictypes.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "content/browser/renderer_host/render_view_host_delegate.h"
 #include "content/browser/site_instance_impl.h"
 #include "content/common/content_export.h"
 #include "content/public/browser/global_request_id.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "content/public/common/referrer.h"
 #include "ui/base/page_transition_types.h"
 
 struct FrameMsg_Navigate_Params;
 
 namespace content {
 class BrowserContext;
 class CrossProcessFrameConnector;
 class CrossSiteTransferringRequest;
+class FrameNavigationEntry;
 class FrameTreeNode;
 class InterstitialPageImpl;
 class NavigationControllerImpl;
 class NavigationEntry;
 class NavigationEntryImpl;
 class NavigationRequest;
 class NavigatorTestWithBrowserSideNavigation;
 class RenderFrameHost;
 class RenderFrameHostDelegate;
 class RenderFrameHostImpl;
@@ skipping 204 matching lines @@
   // Returns the speculative WebUI for the navigation (a newly created one or
   // the current one if it should be reused). If none is set returns nullptr.
   WebUIImpl* speculative_web_ui() const {
     return should_reuse_web_ui_ ? web_ui_.get() : speculative_web_ui_.get();
   }
 
   // Called when we want to instruct the renderer to navigate to the given
   // navigation entry. It may create a new RenderFrameHost or re-use an existing
   // one. The RenderFrameHost to navigate will be returned. Returns NULL if one
   // could not be created.
-  RenderFrameHostImpl* Navigate(const NavigationEntryImpl& entry);
+  RenderFrameHostImpl* Navigate(const FrameNavigationEntry& frame_entry,
+                                const NavigationEntryImpl& entry);
+
+  // Convenience function for the main frame's RenderFrameHostManager, which
+  // navigates to the root FrameNavigationEntry for |entry|.
+  RenderFrameHostImpl* NavigateMainFrame(const NavigationEntryImpl& entry);
 
   // Instructs the various live views to stop. Called when the user directed the
   // page to stop loading.
   void Stop();
 
   // Notifies the regular and pending RenderViewHosts that a load is or is not
   // happening. Even though the message is only for one of them, we don't know
   // which one so we tell both.
   void SetIsLoading(bool is_loading);
 
@@ skipping 441 matching lines @@
   bool should_reuse_web_ui_;
 
   base::WeakPtrFactory<RenderFrameHostManager> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderFrameHostManager);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_FRAME_HOST_RENDER_FRAME_HOST_MANAGER_H_