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

chrome/common/extensions/extension_localization_peer.h

Index: chrome/common/extensions/extension_localization_peer.h
diff --git a/chrome/common/extensions/extension_localization_peer.h b/chrome/common/extensions/extension_localization_peer.h
index 0a33bc9cd95794aec2ef1fef19ff71221d6de349..bcc91740b9264c4a543000d1bac34dbdf4f7df3f 100644
--- a/chrome/common/extensions/extension_localization_peer.h
+++ b/chrome/common/extensions/extension_localization_peer.h
@@ -34,17 +34,21 @@ class ExtensionLocalizationPeer
   virtual bool OnReceivedRedirect(
       const GURL& new_url,
       const webkit_glue::ResourceResponseInfo& info,
+      const base::TimeTicks& start_time,
+      const base::TimeTicks& end_time,
       bool* has_new_first_party_for_cookies,
       GURL* new_first_party_for_cookies);
   virtual void OnReceivedResponse(
-      const webkit_glue::ResourceResponseInfo& info);
+      const webkit_glue::ResourceResponseInfo& info,
+      const base::TimeTicks& start_time,
+      const base::TimeTicks& end_time);
   virtual void OnDownloadedData(int len) {}
   virtual void OnReceivedData(const char* data,
                               int data_length,
                               int encoded_data_length);
   virtual void OnCompletedRequest(const net::URLRequestStatus& status,
                                   const std::string& security_info,
-                                  const base::Time& completion_time);
+                                  const base::TimeTicks& completion_time);

[jar (doing other things), 2011/11/19 03:42:32]

Generally I like to see TimeTicks used more (it is not local time dependent),
but there are some places that need the local adjusted time.  I'll be curious to
see where this falls.

 
  private:
   friend class ExtensionLocalizationPeerTest;
@@ -75,6 +79,10 @@ class ExtensionLocalizationPeer
   // Original request URL.
   GURL request_url_;
 
+  // When the request started and the initial response was returned.
+  base::TimeTicks start_time_;
+  base::TimeTicks end_time_;
+
  private:
   DISALLOW_COPY_AND_ASSIGN(ExtensionLocalizationPeer);
 };