Fix unexpected blurry text caused by combination of skew and promotion

third_party/WebKit/Source/platform/graphics/CompositingReasons.cpp

Index: third_party/WebKit/Source/platform/graphics/CompositingReasons.cpp
diff --git a/third_party/WebKit/Source/platform/graphics/CompositingReasons.cpp b/third_party/WebKit/Source/platform/graphics/CompositingReasons.cpp
index d7916a674b5df781146edc21a4354471673abdc6..920d5fe95c257455432f231aee2a4c5bdf76c9d9 100644
--- a/third_party/WebKit/Source/platform/graphics/CompositingReasons.cpp
+++ b/third_party/WebKit/Source/platform/graphics/CompositingReasons.cpp
@@ -141,6 +141,10 @@ const CompositingReasonStringMap kCompositingReasonStringMap[] = {
     {CompositingReasonInlineTransform, "inlineTransform",
      "Has an inline transform, which causes subsequent layers to assume "
      "overlap"},
+    {CompositingReasonLayerForTextWithinSkewedPromotedElement,
+     "layerForTextWithinSkewedPromotedElement",
+     "Has skewed text in promoted element which causes blurriness without "
+     "separately compositing"},
 };
 
 const size_t kNumberOfCompositingReasons =