DRAFT CL: Add FrameNavigationEntry and track subframe session histories.

content/browser/frame_host/navigator_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_NAVIGATOR_IMPL_H_
 #define CONTENT_BROWSER_FRAME_HOST_NAVIGATOR_IMPL_H_
 
 #include "base/containers/scoped_ptr_hash_map.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 34 matching lines @@
       override;
   void DidFailLoadWithError(RenderFrameHostImpl* render_frame_host,
                             const GURL& url,
                             int error_code,
                             const base::string16& error_description) override;
   void DidNavigate(RenderFrameHostImpl* render_frame_host,
                    const FrameHostMsg_DidCommitProvisionalLoad_Params&
                        input_params) override;
   bool NavigateToPendingEntry(
       FrameTreeNode* frame_tree_node,
+      const FrameNavigationEntry& frame_nav_entry,
       NavigationController::ReloadType reload_type) override;
   void RequestOpenURL(RenderFrameHostImpl* render_frame_host,
                       const GURL& url,
                       SiteInstance* source_site_instance,
                       const Referrer& referrer,
                       WindowOpenDisposition disposition,
                       bool should_replace_current_entry,
                       bool user_gesture) override;
   void RequestTransferURL(RenderFrameHostImpl* render_frame_host,
                           const GURL& url,
@@ skipping 30 matching lines @@
   // Holds data used to track browser side navigation metrics.
   struct NavigationMetricsData;
 
   friend class NavigatorTestWithBrowserSideNavigation;
   ~NavigatorImpl() override;
 
   // Navigates to the given entry, which must be the pending entry.  Private
   // because all callers should use NavigateToPendingEntry.
   bool NavigateToEntry(
       FrameTreeNode* frame_tree_node,
+      const FrameNavigationEntry& frame_nav_entry,
       const NavigationEntryImpl& entry,
       NavigationController::ReloadType reload_type);
 
   bool ShouldAssignSiteForURL(const GURL& url);
 
   void CheckWebUIRendererDoesNotDisplayNormalURL(
     RenderFrameHostImpl* render_frame_host,
     const GURL& url);
 
   // PlzNavigate: if needed, sends a BeforeUnload IPC to the renderer to ask it
   // to execute the beforeUnload event. Otherwise, the navigation request will
   // be started.
   void RequestNavigation(FrameTreeNode* frame_tree_node,
+                         const FrameNavigationEntry& frame_entry,
                          const NavigationEntryImpl& entry,
                          NavigationController::ReloadType reload_type,
                          base::TimeTicks navigation_start);
 
   // PlzNavigate: sends the NavigationRequest for |frame_tree_node| to the
   // network stack so that it can start.
   void BeginNavigation(FrameTreeNode* frame_tree_node);
 
   void RecordNavigationMetrics(
       const LoadCommittedDetails& details,
@@ skipping 16 matching lines @@
   // different FrameTreeNodes, based on the frame_tree_node_id.
   typedef base::ScopedPtrHashMap<int64, NavigationRequest> NavigationRequestMap;
   NavigationRequestMap navigation_request_map_;
 
   DISALLOW_COPY_AND_ASSIGN(NavigatorImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_FRAME_HOST_NAVIGATOR_IMPL_H_