Use a monotonic clock (TimeTicks) to report network times to WebCore.

chrome/common/extensions/extension_localization_peer.h

 // Copyright (c) 2011 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 CHROME_COMMON_EXTENSIONS_EXTENSION_LOCALIZATION_PEER_H_
 #define CHROME_COMMON_EXTENSIONS_EXTENSION_LOCALIZATION_PEER_H_
 #pragma once
 
 #include <string>
 
@@ skipping 24 matching lines @@
       const GURL& new_url,
       const webkit_glue::ResourceResponseInfo& info,
       bool* has_new_first_party_for_cookies,
       GURL* new_first_party_for_cookies) OVERRIDE;
   virtual void OnReceivedResponse(
       const webkit_glue::ResourceResponseInfo& info) OVERRIDE;
   virtual void OnDownloadedData(int len) OVERRIDE {}
   virtual void OnReceivedData(const char* data,
                               int data_length,
                               int encoded_data_length) OVERRIDE;
-  virtual void OnCompletedRequest(const net::URLRequestStatus& status,
-                                  const std::string& security_info,
-                                  const base::Time& completion_time) OVERRIDE;
+  virtual void OnCompletedRequest(
+      const net::URLRequestStatus& status,
+      const std::string& security_info,
+      const base::TimeTicks& completion_time) OVERRIDE;
 
  private:
   friend class ExtensionLocalizationPeerTest;
 
   // Use CreateExtensionLocalizationPeer to create an instance.
   ExtensionLocalizationPeer(
       webkit_glue::ResourceLoaderBridge::Peer* peer,
       IPC::Message::Sender* message_sender,
       const GURL& request_url);
 
@@ skipping 15 matching lines @@
   std::string data_;
 
   // Original request URL.
   GURL request_url_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(ExtensionLocalizationPeer);
 };
 
 #endif  // CHROME_COMMON_EXTENSIONS_EXTENSION_LOCALIZATION_PEER_H_