Correctly record and pass around navigation start time.

components/html_viewer/html_document.cc

 // Copyright 2014 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.
 
 #include "components/html_viewer/html_document.h"
 
 #include "base/command_line.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/single_thread_task_runner.h"
 #include "base/stl_util.h"
 #include "base/strings/string_util.h"
 #include "base/thread_task_runner_handle.h"
+#include "base/time/time.h"
 #include "components/html_viewer/blink_url_request_type_converters.h"
 #include "components/html_viewer/devtools_agent_impl.h"
 #include "components/html_viewer/document_resource_waiter.h"
 #include "components/html_viewer/global_state.h"
 #include "components/html_viewer/html_frame.h"
 #include "components/html_viewer/html_frame_tree_manager.h"
 #include "components/html_viewer/test_html_viewer_impl.h"
 #include "components/html_viewer/web_url_loader_impl.h"
 #include "components/mus/public/cpp/view.h"
 #include "components/mus/public/cpp/view_tree_connection.h"
@@ skipping 130 matching lines @@
   if (view) {
     global_state_->InitIfNecessary(
         view->viewport_metrics().size_in_pixels.To<gfx::Size>(),
         view->viewport_metrics().device_pixel_ratio);
   }
 
   scoped_ptr<WebURLRequestExtraData> extra_data(new WebURLRequestExtraData);
   extra_data->synthetic_response =
       resource_waiter_->ReleaseURLResponse().Pass();
 
+  base::TimeTicks navigation_start_time =
+      resource_waiter_->navigation_start_time();
   frame_ = HTMLFrameTreeManager::CreateFrameAndAttachToTree(
       global_state_, view, resource_waiter_.Pass(), this);
 
   // If the frame wasn't created we can destroy ourself.
   if (!frame_) {
     Destroy();
     return;
   }
 
   if (devtools_agent_request_.is_pending()) {
     if (frame_->devtools_agent()) {
       frame_->devtools_agent()->BindToRequest(devtools_agent_request_.Pass());
     } else {
       devtools_agent_request_ =
           mojo::InterfaceRequest<devtools_service::DevToolsAgent>();
     }
   }
 
   const GURL url(extra_data->synthetic_response->url);
 
   blink::WebURLRequest web_request;
   web_request.initialize();
   web_request.setURL(url);
   web_request.setExtraData(extra_data.release());
 
-  frame_->LoadRequest(web_request);
+  frame_->LoadRequest(web_request, navigation_start_time);
 }
 
 HTMLDocument::BeforeLoadCache* HTMLDocument::GetBeforeLoadCache() {
   CHECK(!did_finish_local_frame_load_);
   if (!before_load_cache_.get())
     before_load_cache_.reset(new BeforeLoadCache);
   return before_load_cache_.get();
 }
 
 void HTMLDocument::OnEmbed(View* root) {
@@ skipping 115 matching lines @@
     mojo::InterfaceRequest<mojo::ViewTreeClient> request) {
   DCHECK(!transferable_state_.view_tree_delegate_impl);
   transferable_state_.view_tree_delegate_impl.reset(
       new ViewTreeDelegateImpl(this));
   transferable_state_.owns_view_tree_connection = true;
   mus::ViewTreeConnection::Create(
       transferable_state_.view_tree_delegate_impl.get(), request.Pass());
 }
 
 }  // namespace html_viewer