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 c54705d119d3526ca427c301707e105d469805ab..df499bdece524e805665c5aec11cafe3c0a5ac9c 100644
--- a/chrome/renderer/security_filter_peer.h
+++ b/chrome/renderer/security_filter_peer.h
@@ -41,9 +41,10 @@ class SecurityFilterPeer : public webkit_glue::ResourceLoaderBridge::Peer {
   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;
 
  protected:
   SecurityFilterPeer(webkit_glue::ResourceLoaderBridge* resource_loader_bridge,
@@ -71,9 +72,10 @@ class BufferedPeer : public SecurityFilterPeer {
   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;
 
  protected:
   // Invoked when the entire request has been processed before the data is sent
@@ -113,9 +115,10 @@ class ReplaceContentPeer : public SecurityFilterPeer {
   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:
   webkit_glue::ResourceResponseInfo response_info_;