Revert 170347 "Convert HTMLFrameOwnerElement and FocusController..."

Source/bindings/v8/BindingSecurity.cpp

 /*
  * Copyright (C) 2009 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 62 matching lines @@
         return true;
 
     if (reportingOption == ReportSecurityError && targetDocument->domWindow()) {
         if (LocalFrame* frame = targetDocument->frame())
             frame->domWindow()->printErrorMessage(targetDocument->domWindow()->crossDomainAccessErrorMessage(callingWindow));
     }
 
     return false;
 }
 
-bool BindingSecurity::shouldAllowAccessToFrame(v8::Isolate* isolate, Frame* target, SecurityReportingOption reportingOption)
+bool BindingSecurity::shouldAllowAccessToFrame(v8::Isolate* isolate, LocalFrame* target, SecurityReportingOption reportingOption)
 {
-    if (!target || !target->isLocalFrame())
-        return false;
-    return canAccessDocument(isolate, toLocalFrame(target)->document(), reportingOption);
+    return target && canAccessDocument(isolate, target->document(), reportingOption);
 }
 
-bool BindingSecurity::shouldAllowAccessToFrame(v8::Isolate* isolate, Frame* target, ExceptionState& exceptionState)
+bool BindingSecurity::shouldAllowAccessToFrame(v8::Isolate* isolate, LocalFrame* target, ExceptionState& exceptionState)
 {
-    if (!target || !target->isLocalFrame())
-        return false;
-    return canAccessDocument(isolate, toLocalFrame(target)->document(), exceptionState);
+    return target && canAccessDocument(isolate, target->document(), exceptionState);
 }
 
 bool BindingSecurity::shouldAllowAccessToNode(v8::Isolate* isolate, Node* target, ExceptionState& exceptionState)
 {
     return target && canAccessDocument(isolate, &target->document(), exceptionState);
 }
 
 }