Animations: Smooth interpolation for scale none

third_party/WebKit/Source/core/css/resolver/AnimatedStyleBuilder.cpp

 /*
  * Copyright (C) 2013 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 281 matching lines @@
 FontDescription::Size animatableValueToFontSize(const AnimatableValue* value) {
   float size = clampTo<float>(toAnimatableDouble(value)->toDouble(), 0);
   return FontDescription::Size(0, size, true);
 }
 
 TransformOperation* animatableValueToTransformOperation(
     const AnimatableValue* value,
     TransformOperation::OperationType type) {
   const TransformOperations& transformList =
       toAnimatableTransform(value)->transformOperations();
+  if (transformList.size() == 0)
+    return nullptr;
   ASSERT(transformList.size() == 1);
   ASSERT(transformList.operations()[0].get()->type() == type);
   return transformList.operations()[0].get();
 }
 
 }  // namespace
 
 // FIXME: Generate this function.
 void AnimatedStyleBuilder::applyProperty(CSSPropertyID property,
                                          StyleResolverState& state,
@@ skipping 537 matching lines @@
       style->setRy(
           animatableValueToLength(value, state, ValueRangeNonNegative));
       return;
 
     default:
       ASSERT_NOT_REACHED();
   }
 }
 
 }  // namespace blink