[css-ui] Make caret-color animatable

third_party/WebKit/Source/core/style/ComputedStyle.cpp

Index: third_party/WebKit/Source/core/style/ComputedStyle.cpp
diff --git a/third_party/WebKit/Source/core/style/ComputedStyle.cpp b/third_party/WebKit/Source/core/style/ComputedStyle.cpp
index 070c725a0c9e87d02d45c3e2a7c9ac80c7f56136..d848a742694be5400eacc12b0b38da0817402edb 100644
--- a/third_party/WebKit/Source/core/style/ComputedStyle.cpp
+++ b/third_party/WebKit/Source/core/style/ComputedStyle.cpp
@@ -2090,7 +2090,8 @@ Color ComputedStyle::colorIncludingFallback(int colorProperty,
           visitedLink ? visitedLinkCaretColor() : caretColor();
       // TODO(rego): We may want to adjust the caret color if it's the same than
       // the background to ensure good visibility and contrast.
-      result = autoColor.toStyleColor();
+      result = autoColor.isAutoColor() ? StyleColor::currentColor()
+                                       : autoColor.toStyleColor();
       break;
     }
     case CSSPropertyColor: