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

chrome/browser/ui/blocked_content/blocked_content_container.cc

Index: chrome/browser/ui/blocked_content/blocked_content_container.cc
===================================================================
--- chrome/browser/ui/blocked_content/blocked_content_container.cc	(revision 154307)
+++ chrome/browser/ui/blocked_content/blocked_content_container.cc	(working copy)
@@ -75,11 +75,14 @@
       tab_contents->blocked_content_tab_helper()->set_delegate(NULL);
       // We needn't call WasShown to change its status because the
       // WebContents::AddNewContents will do it.
-      owner_->web_contents()->AddNewContents(
-          tab_contents->web_contents(),
-          content.disposition,
-          content.bounds,
-          content.user_gesture);
+      WebContentsDelegate* delegate = owner_->web_contents()->GetDelegate();
+      if (delegate) {
+        delegate->AddNewContents(owner_->web_contents(),
+                                 tab_contents->web_contents(),
+                                 content.disposition,
+                                 content.bounds,
+                                 content.user_gesture);
+      }
       break;
     }
   }
@@ -116,13 +119,17 @@
   return owner_->web_contents()->OpenURL(params);
 }
 
-void BlockedContentContainer::AddNewContents(WebContents* source,
+bool BlockedContentContainer::AddNewContents(WebContents* source,
                                              WebContents* new_contents,
                                              WindowOpenDisposition disposition,
                                              const gfx::Rect& initial_position,
                                              bool user_gesture) {
-  owner_->web_contents()->AddNewContents(
-      new_contents, disposition, initial_position, user_gesture);
+  WebContentsDelegate* delegate = owner_->web_contents()->GetDelegate();
+  if (delegate) {
+    delegate->AddNewContents(owner_->web_contents(), new_contents,
+                             disposition, initial_position, user_gesture);
+  }
+  return true;
 }
 
 void BlockedContentContainer::CloseContents(WebContents* source) {