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

chrome/renderer/security_filter_peer.h

Index: chrome/renderer/security_filter_peer.h
diff --git a/chrome/renderer/security_filter_peer.h b/chrome/renderer/security_filter_peer.h
index 7095d76dfa33e5d3a7b81722f52612e5a01a6064..daf68f66bad8d4a85c32b806b6b1689e2484dcf7 100644
--- a/chrome/renderer/security_filter_peer.h
+++ b/chrome/renderer/security_filter_peer.h
@@ -33,17 +33,21 @@ class SecurityFilterPeer : public webkit_glue::ResourceLoaderBridge::Peer {
   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);
 
  protected:
   SecurityFilterPeer(webkit_glue::ResourceLoaderBridge* resource_loader_bridge,
@@ -52,6 +56,9 @@ class SecurityFilterPeer : public webkit_glue::ResourceLoaderBridge::Peer {
   webkit_glue::ResourceLoaderBridge::Peer* original_peer_;
   webkit_glue::ResourceLoaderBridge* resource_loader_bridge_;
 
+  base::TimeTicks start_time_;
+  base::TimeTicks end_time_;
+
  private:
   DISALLOW_COPY_AND_ASSIGN(SecurityFilterPeer);
 };
@@ -67,13 +74,15 @@ class BufferedPeer : public SecurityFilterPeer {
 
   // ResourceLoaderBridge::Peer Implementation.
   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 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);
 
  protected:
   // Invoked when the entire request has been processed before the data is sent
@@ -109,13 +118,15 @@ class ReplaceContentPeer : public SecurityFilterPeer {
 
   // ResourceLoaderBridge::Peer Implementation.
   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 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);
 
  private:
   webkit_glue::ResourceResponseInfo response_info_;