Add runtime flag for PagePopup.

Source/WebKit/chromium/src/WebRuntimeFeatures.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 370 matching lines @@
 
 bool WebRuntimeFeatures::isNotificationsEnabled()
 {
 #if ENABLE(NOTIFICATIONS) || ENABLE(LEGACY_NOTIFICATIONS)
     return RuntimeEnabledFeatures::notificationsEnabled();
 #else
     return false;
 #endif
 }
 
+void WebRuntimeFeatures::enablePagePopup(bool enable)
+{
+    RuntimeEnabledFeatures::setPagePopupEnabled(enable);
+}
+
+bool WebRuntimeFeatures::isPagePopupEnabled()
+{
+    return RuntimeEnabledFeatures::pagePopupEnabled();
+}
+
 void WebRuntimeFeatures::enablePeerConnection(bool enable)
 {
     RuntimeEnabledFeatures::setPeerConnectionEnabled(enable);
 }
 
 bool WebRuntimeFeatures::isPeerConnectionEnabled()
 {
     return RuntimeEnabledFeatures::peerConnectionEnabled();
 }
 
@@ skipping 121 matching lines @@
 {
     RuntimeEnabledFeatures::setWebPInAcceptHeaderEnabled(enable);
 }
 
 bool WebRuntimeFeatures::isWebPInAcceptHeaderEnabled()
 {
     return RuntimeEnabledFeatures::webPInAcceptHeaderEnabled();
 }
 
 } // namespace WebKit