Adds the new URLRequest::OnBeforeNetworkStart hook to the

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 7bcab8813c13330f4ba3990b77f04628e37e484d..469782d9dfd0d2c7ef06321f94438d474ea3385d 100644
--- a/content/public/browser/resource_throttle.h
+++ b/content/public/browser/resource_throttle.h
@@ -25,6 +25,7 @@ class ResourceThrottle {
   virtual void WillStartRequest(bool* defer) {}
   virtual void WillRedirectRequest(const GURL& new_url, bool* defer) {}
   virtual void WillProcessResponse(bool* defer) {}
+  virtual void OnBeforeNetworkStart(bool* defer) {}

[darin (slow to review), 2014/07/25 20:26:49]

Sorry, I only stumbled upon this now, but this method is pretty obviously
misnamed. It isn't consistent with the other methods on this interface. I might
suggest a name like WillStartUsingNetwork, and it seems like it should be listed
after WillStartRequest but before WillRedirectRequest, right so that the methods
are ordered in a sensible fashion.

 
   // Returns the name of the throttle, as a UTF-8 C-string, for logging
   // purposes.  NULL is not allowed.  Caller does *not* take ownership of the