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

chrome/browser/ui/cocoa/web_dialog_window_controller.mm

 // 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.
 
 #import "chrome/browser/ui/cocoa/web_dialog_window_controller.h"
 
 #include "base/logging.h"
 #include "base/memory/scoped_nsobject.h"
 #include "base/sys_string_conversions.h"
 #import "chrome/browser/ui/browser_dialogs.h"
@@ skipping 56 matching lines @@
   virtual bool ShouldShowDialogTitle() const OVERRIDE { return true; }
 
   // WebDialogWebContentsDelegate declarations.
   virtual void MoveContents(WebContents* source, const gfx::Rect& pos);
   virtual void HandleKeyboardEvent(content::WebContents* source,
                                    const NativeWebKeyboardEvent& event);
   virtual void CloseContents(WebContents* source) OVERRIDE;
   virtual content::WebContents* OpenURLFromTab(
       content::WebContents* source,
       const content::OpenURLParams& params) OVERRIDE;
-  virtual void AddNewContents(content::WebContents* source,
+  virtual bool AddNewContents(content::WebContents* source,
                               content::WebContents* new_contents,
                               WindowOpenDisposition disposition,
                               const gfx::Rect& initial_pos,
                               bool user_gesture) OVERRIDE;
   virtual void LoadingStateChanged(content::WebContents* source) OVERRIDE;
 
 private:
   WebDialogWindowController* controller_;  // weak
   WebDialogDelegate* delegate_;  // weak, owned by controller_
 
@@ skipping 134 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 WebDialogWindowDelegateBridge::AddNewContents(
+bool WebDialogWindowDelegateBridge::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 WebDialogWindowDelegateBridge::LoadingStateChanged(
     content::WebContents* source) {
   if (delegate_)
     delegate_->OnLoadingStateChanged(source);
 }
 
 void WebDialogWindowDelegateBridge::MoveContents(WebContents* source,
@@ skipping 115 matching lines @@
   // TODO(akalin): Figure out why implementing (void)cancel:(id)sender
   // to do the above doesn't work.
 }
 
 - (void)windowWillClose:(NSNotification*)notification {
   delegate_->WindowControllerClosed();
   [self autorelease];
 }
 
 @end