Correctly record and pass around navigation start time.

components/web_view/frame.h

 // Copyright 2015 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 COMPONENTS_WEB_VIEW_FRAME_H_
 #define COMPONENTS_WEB_VIEW_FRAME_H_
 
 #include <map>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
+#include "base/time/time.h"
 #include "components/mus/public/cpp/types.h"
 #include "components/mus/public/cpp/view_observer.h"
 #include "components/web_view/public/interfaces/frame.mojom.h"
 #include "third_party/mojo/src/mojo/public/cpp/bindings/binding.h"
 
 class GURL;
 
 namespace web_view {
 
 class FrameTest;
@@ skipping 38 matching lines @@
         uint32_t frame_id,
         uint32_t app_id,
         ViewOwnership view_ownership,
         mojom::FrameClient* frame_client,
         scoped_ptr<FrameUserData> user_data,
         const ClientPropertyMap& client_properties);
   ~Frame() override;
 
   void Init(Frame* parent,
             mojo::ViewTreeClientPtr view_tree_client,
-            mojo::InterfaceRequest<mojom::Frame> frame_request);
+            mojo::InterfaceRequest<mojom::Frame> frame_request,
+            base::TimeTicks navigation_start_time);
 
   // Walks the View tree starting at |view| going up returning the first
   // Frame that is associated with |view|. For example, if |view|
   // has a Frame associated with it, then that is returned. Otherwise
   // this checks view->parent() and so on.
   static Frame* FindFirstFrameAncestor(mus::View* view);
 
   FrameTree* tree() { return tree_; }
 
   Frame* parent() { return parent_; }
@@ skipping 182 matching lines @@
 
   // StartNavigate() stores the request here if the view isn't available at
   // the time of StartNavigate().
   mojo::URLRequestPtr pending_navigate_;
 
   scoped_ptr<mojo::Binding<mojom::Frame>> frame_binding_;
 
   // True if waiting on callback from FrameClient::OnWillNavigate().
   bool waiting_for_on_will_navigate_ack_;
 
+  base::TimeTicks navigation_start_time_;
+
   base::WeakPtrFactory<Frame> embed_weak_ptr_factory_;
 
   base::WeakPtrFactory<Frame> navigate_weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(Frame);
 };
 
 }  // namespace web_view
 
 #endif  // COMPONENTS_WEB_VIEW_FRAME_H_