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

chrome/browser/ui/panels/panel_host.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 "chrome/browser/ui/panels/panel_host.h"
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/message_loop.h"
 #include "chrome/browser/chrome_page_zoom.h"
@@ skipping 91 matching lines @@
 void PanelHost::NavigationStateChanged(const content::WebContents* source,
                                        unsigned changed_flags) {
   // Only need to update the title if the title changed while not loading,
   // because the title is also updated when loading state changes.
   if ((changed_flags & content::INVALIDATE_TYPE_TAB) ||
       ((changed_flags & content::INVALIDATE_TYPE_TITLE) &&
        !source->IsLoading()))
     panel_->UpdateTitleBar();
 }
 
-void PanelHost::AddNewContents(content::WebContents* source,
+bool PanelHost::AddNewContents(content::WebContents* source,
                                content::WebContents* new_contents,
                                WindowOpenDisposition disposition,
                                const gfx::Rect& initial_pos,
                                bool user_gesture) {
   chrome::NavigateParams navigate_params(profile_, new_contents->GetURL(),
                                          content::PAGE_TRANSITION_LINK);
   // Create a TabContents because the NavigateParams takes a TabContents,
   // not a WebContents, for the target_contents.
   TabContents* new_tab_contents = TabContents::FromWebContents(new_contents);
   if (!new_tab_contents)
     new_tab_contents = TabContents::Factory::CreateTabContents(new_contents);
   navigate_params.target_contents = new_tab_contents;
 
   // Force all links to open in a new tab, even if they were trying to open a
   // window.
   navigate_params.disposition =
       disposition == NEW_BACKGROUND_TAB ? disposition : NEW_FOREGROUND_TAB;
 
   navigate_params.window_bounds = initial_pos;
   navigate_params.user_gesture = user_gesture;
   navigate_params.extension_app_id = panel_->extension_id();
   chrome::Navigate(&navigate_params);
+  return true;
 }
 
 void PanelHost::ActivateContents(content::WebContents* contents) {
   panel_->Activate();
 }
 
 void PanelHost::DeactivateContents(content::WebContents* contents) {
   panel_->Deactivate();
 }
 
@@ skipping 101 matching lines @@
 }
 
 void PanelHost::StopLoading() {
   content::RecordAction(UserMetricsAction("Stop"));
   web_contents_->Stop();
 }
 
 void PanelHost::Zoom(content::PageZoom zoom) {
   chrome_page_zoom::Zoom(web_contents_.get(), zoom);
 }