Implemented of base functionality of chrome.experimental.webRequest.onBeforeRedirect

BUG=60101
TEST=execute browser tests

Review URL: http://codereview.chromium.org/6882043

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@82317 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/net/base/network_delegate.cc b/net/base/network_delegate.cc
index 9d1b35f..bb176c13 100644
--- a/net/base/network_delegate.cc
+++ b/net/base/network_delegate.cc
@@ -39,6 +39,14 @@
   OnResponseStarted(request);
 }
 
+void NetworkDelegate::NotifyBeforeRedirect(URLRequest* request,
+                                           const GURL& new_location) {
+  DCHECK(CalledOnValidThread());
+  DCHECK(request);
+  OnBeforeRedirect(request, new_location);
+}
+
+
 void NetworkDelegate::NotifyReadCompleted(URLRequest* request, int bytes_read) {
   DCHECK(CalledOnValidThread());
   DCHECK(request);