[WebsiteSettings] Change permission bubble API to adapt to new mocks.

chrome/browser/ui/cocoa/website_settings/permission_bubble_cocoa.mm

 // Copyright 2014 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/cocoa/website_settings/permission_bubble_cocoa.h"
 
 #import "chrome/browser/ui/cocoa/base_bubble_controller.h"
 #import "chrome/browser/ui/cocoa/browser_window_controller.h"
 #import "chrome/browser/ui/cocoa/location_bar/location_bar_view_mac.h"
 #import "chrome/browser/ui/cocoa/website_settings/permission_bubble_controller.h"
@@ skipping 36 matching lines @@
 }
 
 void PermissionBubbleCocoa::SetDelegate(Delegate* delegate) {
   if (delegate_ == delegate)
     return;
   if (delegate_ && delegate)
     delegate_->SetView(NULL);
   delegate_ = delegate;
 }
 
+bool PermissionBubbleCocoa::CanAcceptRequestUpdate() {
+  // TODO(gbillock): implement. Should return true if the mouse is not over the
+  // dialog.
+  return false;
+}
+
 void PermissionBubbleCocoa::OnBubbleClosing() {
   bubbleController_ = nil;
 }