Emit console warning when element.animate() keyframe value fails to parse

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

 /*
  * Copyright (C) 2004, 2005 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006 Rob Buis <buis@kde.org>
  * Copyright (C) 2008 Apple Inc. All rights reserved.
  * Copyright (C) Research In Motion Limited 2011. All rights reserved.
  *
  * 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.
@@ skipping 337 matching lines @@
     return;
 
   // We do update the style and the animation property independent of each
   // other.
   if (m_animator.isAnimatingCSSProperty()) {
     // CSS properties animation code-path.
     // Convert the result of the animation to a String and apply it as CSS
     // property on the target.
     MutableStylePropertySet* propertySet =
         targetElement()->ensureAnimatedSMILStyleProperties();
-    if (propertySet->setProperty(m_animator.cssProperty(),
-                                 m_animatedProperty->valueAsString(), false,
-                                 0)) {
+    if (propertySet
+            ->setProperty(m_animator.cssProperty(),
+                          m_animatedProperty->valueAsString(), false, 0)
+            .didChange) {
       targetElement()->setNeedsStyleRecalc(
           LocalStyleChange,
           StyleChangeReasonForTracing::create(StyleChangeReason::Animation));
     }
   }
   if (m_animator.isAnimatingSVGDom()) {
     // SVG DOM animVal animation code-path.
     // At this point the SVG DOM values are already changed, unlike for CSS.
     // We only have to trigger update notifications here.
     targetElement()->invalidateAnimatedAttribute(attributeName());
@@ skipping 89 matching lines @@
 DEFINE_TRACE(SVGAnimateElement) {
   visitor->trace(m_fromProperty);
   visitor->trace(m_toProperty);
   visitor->trace(m_toAtEndOfDurationProperty);
   visitor->trace(m_animatedProperty);
   visitor->trace(m_animator);
   SVGAnimationElement::trace(visitor);
 }
 
 }  // namespace blink