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

ui/views/controls/webview/web_dialog_view.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/views/controls/webview/web_dialog_view.h"
 
 #include <vector>
 
 #include "base/utf_string_conversions.h"
 #include "content/public/browser/browser_context.h"
@@ skipping 259 matching lines @@
     content::WebContents* source,
     const content::OpenURLParams& params) {
   content::WebContents* new_contents = NULL;
   if (delegate_ &&
       delegate_->HandleOpenURLFromTab(source, params, &new_contents)) {
     return new_contents;
   }
   return WebDialogWebContentsDelegate::OpenURLFromTab(source, params);
 }
 
-void WebDialogView::AddNewContents(content::WebContents* source,
+bool WebDialogView::AddNewContents(content::WebContents* source,
                                    content::WebContents* new_contents,
                                    WindowOpenDisposition disposition,
                                    const gfx::Rect& initial_pos,
                                    bool user_gesture) {
   if (delegate_ && delegate_->HandleAddNewContents(
           source, new_contents, disposition, initial_pos, user_gesture)) {
-    return;
+    return true;
   }
-  WebDialogWebContentsDelegate::AddNewContents(
+  return WebDialogWebContentsDelegate::AddNewContents(
       source, new_contents, disposition, initial_pos, user_gesture);
 }
 
 void WebDialogView::LoadingStateChanged(content::WebContents* source) {
   if (delegate_)
     delegate_->OnLoadingStateChanged(source);
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // WebDialogView, private:
@@ skipping 13 matching lines @@
     gfx::Size out;
     delegate_->GetDialogSize(&out);
     if (!out.IsEmpty() && GetWidget())
       GetWidget()->CenterWindow(out);
   }
 
   web_view_->LoadInitialURL(GetDialogContentURL());
 }
 
 }  // namespace views