Consolidate read-only exception throwing for SVG*TearOffs

third_party/WebKit/Source/core/svg/SVGNumberTearOff.cpp

 /*
  * Copyright (C) 2014 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 12 matching lines @@
  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "core/svg/SVGNumberTearOff.h"
 
-#include "bindings/core/v8/ExceptionState.h"
-#include "core/dom/ExceptionCode.h"
 #include "core/svg/SVGElement.h"
 
 namespace blink {
 
 SVGNumberTearOff::SVGNumberTearOff(SVGNumber* target, SVGElement* contextElement, PropertyIsAnimValType propertyIsAnimVal, const QualifiedName& attributeName)
     : SVGPropertyTearOff<SVGNumber>(target, contextElement, propertyIsAnimVal, attributeName)
 {
 }
 
 void SVGNumberTearOff::setValue(float f, ExceptionState& exceptionState)
 {
     if (isImmutable()) {
-        exceptionState.throwDOMException(NoModificationAllowedError, "The attribute is read-only.");
+        throwReadOnly(exceptionState);
         return;
     }
-
     target()->setValue(f);
     commitChange();
 }
 
 DEFINE_TRACE_WRAPPERS(SVGNumberTearOff)
 {
     visitor->traceWrappers(contextElement());
 }
 
 } // namespace blink