Drop [LegacyInterfaceTypeChecking] for Selection.prototype.addRange

third_party/WebKit/Source/core/editing/DOMSelection.cpp

 /*
  * Copyright (C) 2007, 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2012 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 375 matching lines @@
 
 void DOMSelection::removeAllRanges()
 {
     if (!m_frame)
         return;
     m_frame->selection().clear();
 }
 
 void DOMSelection::addRange(Range* newRange)
 {
+    ASSERT(newRange);
+
     if (!m_frame)
         return;
 
-    // FIXME: Should we throw DOMException for error cases below?
-    if (!newRange) {
-        addConsoleError("The given range is null.");
-        return;
-    }
-
     if (!newRange->inDocument()) {
         addConsoleError("The given range isn't in document.");
         return;
     }
 
     FrameSelection& selection = m_frame->selection();
 
     if (selection.isNone()) {
         selection.setSelectedRange(newRange, VP_DEFAULT_AFFINITY);
         return;
@@ skipping 151 matching lines @@
         m_treeScope->document().addConsoleMessage(ConsoleMessage::create(JSMessageSource, ErrorMessageLevel, message));
 }
 
 DEFINE_TRACE(DOMSelection)
 {
     visitor->trace(m_treeScope);
     DOMWindowProperty::trace(visitor);
 }
 
 } // namespace blink