PlzNavigate: Add a static CommitNavigation method in FrameTreeNode

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"
 #include "base/memory/scoped_ptr.h"
 #include "content/browser/frame_host/frame_tree_node.h"
 #include "content/common/content_export.h"
 
 namespace content {
 
 class FrameTreeNode;
 class Navigator;
 class RenderFrameHostDelegate;
 class RenderProcessHost;
 class RenderViewHostDelegate;
 class RenderViewHostImpl;
 class RenderFrameHostManager;
 class RenderWidgetHostDelegate;
+struct NavigationBeforeCommitInfo;
 
 // Represents the frame tree for a page. With the exception of the main frame,
 // all FrameTreeNodes will be created/deleted in response to frame attach and
 // detach events in the DOM.
 //
 // The main frame's FrameTreeNode is special in that it is reused. This allows
 // it to serve as an anchor for state that needs to persist across top-level
 // page navigations.
 //
 // TODO(ajwong): Move NavigationController ownership to the main frame
 // FrameTreeNode. Possibly expose access to it from here.
 //
 // This object is only used on the UI thread.
 class CONTENT_EXPORT FrameTree {
  public:
   // Each FrameTreeNode will default to using the given |navigator| for
   // navigation tasks in the frame.
   // A set of delegates are remembered here so that we can create
   // RenderFrameHostManagers.
   // TODO(creis): This set of delegates will change as we move things to
   // Navigator.
   FrameTree(Navigator* navigator,
             RenderFrameHostDelegate* render_frame_delegate,
             RenderViewHostDelegate* render_view_delegate,
             RenderWidgetHostDelegate* render_widget_delegate,
             RenderFrameHostManager::Delegate* manager_delegate);
   ~FrameTree();
 
+  // PlzNavigate
+  // Signal the node with id |frame_tree_node_id| that a navigation request is
+  // ready to commit.
+  static void CommitNavigationInNode(int64 frame_tree_node_id,
+                                     const NavigationBeforeCommitInfo& info);
+
+
   FrameTreeNode* root() const { return root_.get(); }
 
   // Returns the FrameTreeNode with the given |frame_tree_node_id|.
   FrameTreeNode* FindByID(int64 frame_tree_node_id);
 
   // Returns the FrameTreeNode with the given renderer-specific |routing_id|.
   FrameTreeNode* FindByRoutingID(int routing_id, int process_id);
 
   // Executes |on_node| on each node in the frame tree.  If |on_node| returns
   // false, terminates the iteration immediately. Returning false is useful
@@ skipping 97 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_