Web Animations: Suppress compositor animations for transform on inline elements

third_party/WebKit/Source/core/animation/CompositorAnimations.cpp

Index: third_party/WebKit/Source/core/animation/CompositorAnimations.cpp
diff --git a/third_party/WebKit/Source/core/animation/CompositorAnimations.cpp b/third_party/WebKit/Source/core/animation/CompositorAnimations.cpp
index 3a0f34148f6d744244b90379ea036a579effd6ae..f98c86d7ef9ceb42fb138668e9527a86198df6f5 100644
--- a/third_party/WebKit/Source/core/animation/CompositorAnimations.cpp
+++ b/third_party/WebKit/Source/core/animation/CompositorAnimations.cpp
@@ -253,8 +253,12 @@ bool CompositorAnimations::isCandidateForAnimationOnCompositor(const Timing& tim
         if (!property.isCSSProperty())
             return false;
 
-        if (isTransformRelatedCSSProperty(property))
+        if (isTransformRelatedCSSProperty(property)) {
+            if (targetElement.layoutObject() && targetElement.layoutObject()->isInline()) {
+                return false;
+            }
             transformPropertyCount++;
+        }
 
         const PropertySpecificKeyframeVector& keyframes = keyframeEffect.getPropertySpecificKeyframes(property);
         ASSERT(keyframes.size() >= 2);