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

third_party/WebKit/Source/core/dom/Element.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Peter Kelly (pmk@post.com)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2007 David Smith (catfish.man@gmail.com)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012, 2013 Apple Inc.
  * All rights reserved.
  *           (C) 2007 Eric Seidel (eric@webkit.org)
  *
@@ skipping 3890 matching lines @@
                                      bool important) {
   DCHECK(isStyledElement());
   ensureMutableInlineStyle().setProperty(propertyID, *value, important);
   inlineStyleChanged();
 }
 
 bool Element::setInlineStyleProperty(CSSPropertyID propertyID,
                                      const String& value,
                                      bool important) {
   DCHECK(isStyledElement());
-  bool changes = ensureMutableInlineStyle().setProperty(
-      propertyID, value, important, document().elementSheet().contents());
-  if (changes)
+  bool didChange = ensureMutableInlineStyle()
+                       .setProperty(propertyID, value, important,
+                                    document().elementSheet().contents())
+                       .didChange;
+  if (didChange)
     inlineStyleChanged();
-  return changes;
+  return didChange;
 }
 
 bool Element::removeInlineStyleProperty(CSSPropertyID propertyID) {
   DCHECK(isStyledElement());
   if (!inlineStyle())
     return false;
-  bool changes = ensureMutableInlineStyle().removeProperty(propertyID);
-  if (changes)
+  bool didChange = ensureMutableInlineStyle().removeProperty(propertyID);
+  if (didChange)
     inlineStyleChanged();
-  return changes;
+  return didChange;
 }
 
 void Element::removeAllInlineStyleProperties() {
   DCHECK(isStyledElement());
   if (!inlineStyle())
     return;
   ensureMutableInlineStyle().clear();
   inlineStyleChanged();
 }
 
@@ skipping 151 matching lines @@
 }
 
 DEFINE_TRACE_WRAPPERS(Element) {
   if (hasRareData()) {
     visitor->traceWrappers(elementRareData());
   }
   ContainerNode::traceWrappers(visitor);
 }
 
 }  // namespace blink