Correctly record and pass around navigation start time.

components/web_view/url_request_cloneable.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_URL_REQUEST_CLONEABLE_H_
 #define COMPONENTS_WEB_VIEW_URL_REQUEST_CLONEABLE_H_
 
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
+#include "base/time/time.h"
 #include "mojo/services/network/public/interfaces/url_loader.mojom.h"
 #include "url/gurl.h"
 
 namespace web_view {
 
 // This class caches data associated with a mojo::URLRequest and vends copies
 // of the request for the WebView system. Copies are used for repeated
 // navigations, but URLRequest structs are not copyable, as they contain
 // handles to transfer large amounts of data between processes, so we
 // immediately read the data from pipes and keep a copy here.
 class URLRequestCloneable {
  public:
   explicit URLRequestCloneable(mojo::URLRequestPtr original_request);
   explicit URLRequestCloneable(const GURL& raw_url);
   ~URLRequestCloneable();
 
   // Creates a new URLRequest.
   mojo::URLRequestPtr Clone() const;
 
+  void set_originating_time(base::TimeTicks value) {
+    originating_time_ = value;
+  }
+
  private:
   // All of these are straight from mojo::URLRequest.
   mojo::String url_;
   mojo::String method_;
   mojo::Array<mojo::HttpHeaderPtr> headers_;
   uint32_t response_body_buffer_size_;
   bool auto_follow_redirects_;
   bool bypass_cache_;
 
   // Whether the body mojo array in the |original_request| was null. We keep
   // track of this so we can differentiate between null arrays and empty
   // arrays.
   bool original_body_null_;
 
   // This is a serialized version of the data from mojo::URLRequest. We copy
   // this data straight out of the data pipes, and then serve it any time that
   // AsURLRequest() is called.
   std::vector<std::string> body_;
 
+  base::TimeTicks originating_time_;
+
   DISALLOW_COPY_AND_ASSIGN(URLRequestCloneable);
 };
 
 }  // namespace web_view
 
 #endif  // COMPONENTS_WEB_VIEW_URL_REQUEST_CLONEABLE_H_