Block navigations in extensions via ShouldTransferNavigation (not via OpenURL).

content/browser/web_contents/web_contents_impl.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 "content/browser/web_contents/web_contents_impl.h"
 
 #include <stddef.h>
 
 #include <cmath>
 #include <utility>
@@ skipping 3334 matching lines @@
     FOR_EACH_OBSERVER(WebContentsObserver, observers_,
                       DidOpenRequestedURL(new_contents,
                                           render_frame_host,
                                           params.url,
                                           params.referrer,
                                           params.disposition,
                                           params.transition));
   }
 }
 
-bool WebContentsImpl::ShouldTransferNavigation() {
+bool WebContentsImpl::ShouldTransferNavigation(bool is_main_frame_navigation) {
   if (!delegate_)
     return true;
-  return delegate_->ShouldTransferNavigation();
+  return delegate_->ShouldTransferNavigation(is_main_frame_navigation);
 }
 
 bool WebContentsImpl::ShouldPreserveAbortedURLs() {
   if (!delegate_)
     return false;
   return delegate_->ShouldPreserveAbortedURLs(this);
 }
 
 void WebContentsImpl::DidCommitProvisionalLoad(
     RenderFrameHostImpl* render_frame_host,
@@ skipping 1889 matching lines @@
   dialog_manager_ = dialog_manager;
 }
 
 void WebContentsImpl::RemoveBindingSet(const std::string& interface_name) {
   auto it = binding_sets_.find(interface_name);
   if (it != binding_sets_.end())
     binding_sets_.erase(it);
 }
 
 }  // namespace content