Pass result of blockage across content API when new tab blocked.

chrome/browser/notifications/balloon_host.cc

Index: chrome/browser/notifications/balloon_host.cc
===================================================================
--- chrome/browser/notifications/balloon_host.cc	(revision 154977)
+++ chrome/browser/notifications/balloon_host.cc	(working copy)
@@ -81,12 +81,13 @@
                                  WebContents* new_contents,
                                  WindowOpenDisposition disposition,
                                  const gfx::Rect& initial_pos,
-                                 bool user_gesture) {
+                                 bool user_gesture,
+                                 bool* was_blocked) {
   Browser* browser = browser::FindLastActiveWithProfile(
       Profile::FromBrowserContext(new_contents->GetBrowserContext()));
   if (browser) {
     chrome::AddWebContents(browser, NULL, new_contents, disposition,
-                           initial_pos, user_gesture);
+                           initial_pos, user_gesture, was_blocked);
   }
 }