Introduce createRange(const EphemeralRange&)

Source/core/testing/Internals.cpp

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  * Copyright (C) 2013 Apple 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 1008 matching lines @@
     mainFrame->scrollableArea()->scrollIntoRect(LayoutRect(boundsInRootContent), FloatRect(x, y, w, h));
 }
 
 PassRefPtrWillBeRawPtr<Range> Internals::rangeFromLocationAndLength(Element* scope, int rangeLocation, int rangeLength)
 {
     ASSERT(scope);
 
     // TextIterator depends on Layout information, make sure layout it up to date.
     scope->document().updateLayoutIgnorePendingStylesheets();
 
-    const EphemeralRange range = PlainTextRange(rangeLocation, rangeLocation + rangeLength).createRange(*scope);
-    if (range.isNull())
-        return nullptr;
-    return Range::create(range.document(), range.startPosition(), range.endPosition());
+    return createRange(PlainTextRange(rangeLocation, rangeLocation + rangeLength).createRange(*scope));
 }
 
 unsigned Internals::locationFromRange(Element* scope, const Range* range)
 {
     ASSERT(scope && range);
     // PlainTextRange depends on Layout information, make sure layout it up to date.
     scope->document().updateLayoutIgnorePendingStylesheets();
 
     return PlainTextRange::create(*scope, *range).start();
 }
@@ skipping 1439 matching lines @@
 
     return animator->setScrollbarsVisibleForTesting(visible);
 }
 
 void Internals::forceRestrictIFramePermissions()
 {
     RuntimeEnabledFeatures::setRestrictIFramePermissionsEnabled(true);
 }
 
 } // namespace blink