(DEPRECATED) Send navigation_start to browser process in DidStartProvisionalLoad

content/public/browser/navigation_handle.h

Index: content/public/browser/navigation_handle.h
diff --git a/content/public/browser/navigation_handle.h b/content/public/browser/navigation_handle.h
index 3b2bbadda772a2f31a97b5faff489b0b730728c9..23f380ef32f2fb3c5d5f1139c75d7f55c8e4090c 100644
--- a/content/public/browser/navigation_handle.h
+++ b/content/public/browser/navigation_handle.h
@@ -39,6 +39,10 @@ class CONTENT_EXPORT NavigationHandle {
   // The WebContents the navigation is taking place in.
   WebContents* GetWebContents();
 
+  // The time the navigation started, recorded either in the renderer or browser
+  // process. Corresponds to Navigation Timing API Standard.
+  virtual double GetNavigationStart() = 0;

[clamy, 2015/10/28 12:40:01]

This should be a base::TimeTicks (or a base::Time if it really can't be
converted to a base::TimeTicks).

+
   // Parameters available at network request start time ------------------------
   //
   // The following parameters are only available when the network request is