Remove ResourceHandler::OnBeforeNetworkStart

content/public/browser/resource_throttle.h

Index: content/public/browser/resource_throttle.h
diff --git a/content/public/browser/resource_throttle.h b/content/public/browser/resource_throttle.h
index 010e16c7584c801ff9214d29ec13f6abf229cd68..7a980f2a21691357e111eeebdf469ffc317c6c63 100644
--- a/content/public/browser/resource_throttle.h
+++ b/content/public/browser/resource_throttle.h
@@ -27,9 +27,6 @@ class ResourceThrottle {
   // Called before the resource request is started.
   virtual void WillStartRequest(bool* defer) {}
 
-  // Called before the resource request uses the network for the first time.
-  virtual void WillStartUsingNetwork(bool* defer) {}
-
   // Called when the request was redirected.  |redirect_info| contains the
   // redirect responses's HTTP status code and some information about the new
   // request that will be sent if the redirect is followed, including the new