Remove currentView, useCurrentView properties of SVGSVGElement and SVGViewSpec interface

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

 /*
  * Copyright (C) 2007, 2010 Rob Buis <buis@kde.org>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 20 matching lines @@
 
 SVGViewSpec::SVGViewSpec(SVGSVGElement* contextElement)
     // Note: addToPropertyMap is not needed, as SVGViewSpec do not correspond to
     // an element.  We make tear-offs' contextElement the target element of
     // SVGViewSpec.  This contextElement will be only used for keeping this
     // alive from the tearoff.  SVGSVGElement holds a strong-ref to this
     // SVGViewSpec, so this is kept alive as:
     // AnimatedProperty tearoff -(contextElement)-> SVGSVGElement -(RefPtr)->
     //    SVGViewSpec.
     : SVGFitToViewBox(contextElement, PropertyMapPolicySkip),
-      m_contextElement(this, contextElement),
+      m_contextElement(contextElement),
       m_transform(SVGAnimatedTransformList::create(contextElement,
                                                    SVGNames::transformAttr)) {
   ASSERT(m_contextElement);
 
   viewBox()->setReadOnly();
   preserveAspectRatio()->setReadOnly();
   m_transform->setReadOnly();
   // Note: addToPropertyMap is not needed, as SVGViewSpec do not correspond to
   // an element.
 }
 
 DEFINE_TRACE(SVGViewSpec) {
   visitor->trace(m_contextElement);
   visitor->trace(m_transform);
   SVGFitToViewBox::trace(visitor);
 }
 
-DEFINE_TRACE_WRAPPERS(SVGViewSpec) {
-  visitor->traceWrappers(m_contextElement);
-}
-
 bool SVGViewSpec::parseViewSpec(const String& spec) {
   if (spec.isEmpty() || !m_contextElement)
     return false;
   if (spec.is8Bit()) {
     const LChar* ptr = spec.characters8();
     const LChar* end = ptr + spec.length();
     return parseViewSpecInternal(ptr, end);
   }
   const UChar* ptr = spec.characters16();
   const UChar* end = ptr + spec.length();
   return parseViewSpecInternal(ptr, end);
 }
 
 void SVGViewSpec::reset() {
   resetZoomAndPan();
   m_transform->baseValue()->clear();
   updateViewBox(FloatRect());
   ASSERT(preserveAspectRatio());
   preserveAspectRatio()->baseValue()->setAlign(
       SVGPreserveAspectRatio::kSvgPreserveaspectratioXmidymid);
   preserveAspectRatio()->baseValue()->setMeetOrSlice(
       SVGPreserveAspectRatio::kSvgMeetorsliceMeet);
   m_viewTargetString = emptyString();
 }
 
-void SVGViewSpec::detachContextElement() {
-  m_transform = nullptr;
-  clearViewBox();
-  clearPreserveAspectRatio();
-  m_contextElement = nullptr;
-}
-
-SVGElement* SVGViewSpec::viewTarget() const {
-  if (!m_contextElement)
-    return nullptr;
-  Element* element = m_contextElement->treeScope().getElementById(
-      AtomicString(m_viewTargetString));
-  if (!element || !element->isSVGElement())
-    return nullptr;
-  return toSVGElement(element);
-}
-
-String SVGViewSpec::viewBoxString() const {
-  if (!viewBox())
-    return String();
-
-  return viewBox()->currentValue()->valueAsString();
-}
-
-String SVGViewSpec::preserveAspectRatioString() const {
-  if (!preserveAspectRatio())
-    return String();
-
-  return preserveAspectRatio()->baseValue()->valueAsString();
-}
-
-String SVGViewSpec::transformString() const {
-  if (!m_transform)
-    return String();
-
-  return m_transform->baseValue()->valueAsString();
-}
-
-void SVGViewSpec::setZoomAndPan(unsigned short,
-                                ExceptionState& exceptionState) {
-  // SVGViewSpec and all of its content is read-only.
-  exceptionState.throwDOMException(NoModificationAllowedError,
-                                   ExceptionMessages::readOnly());
-}
-
 namespace {
 
 enum ViewSpecFunctionType {
   Unknown,
   PreserveAspectRatio,
   Transform,
   ViewBox,
   ViewTarget,
   ZoomAndPan,
 };
@@ skipping 83 matching lines @@
 
     if (!skipExactly<CharType>(ptr, end, ')'))
       return false;
 
     skipExactly<CharType>(ptr, end, ';');
   }
   return skipExactly<CharType>(ptr, end, ')');
 }
 
 }  // namespace blink