Remove webkit-background-composite

third_party/WebKit/Source/core/frame/Deprecation.cpp

Index: third_party/WebKit/Source/core/frame/Deprecation.cpp
diff --git a/third_party/WebKit/Source/core/frame/Deprecation.cpp b/third_party/WebKit/Source/core/frame/Deprecation.cpp
index a3ad08754356dde3ce23a9cb2f9e03201cb1461e..8744e7d741dd337324cca1e3dc4d050ba2a42d3c 100644
--- a/third_party/WebKit/Source/core/frame/Deprecation.cpp
+++ b/third_party/WebKit/Source/core/frame/Deprecation.cpp
@@ -56,12 +56,9 @@ void Deprecation::warnOnDeprecatedProperties(const LocalFrame* frame, CSSPropert
 
 String Deprecation::deprecationMessage(CSSPropertyID unresolvedProperty)
 {
-    switch (unresolvedProperty) {
-    case CSSPropertyWebkitBackgroundComposite:
-        return willBeRemoved("'-webkit-background-composite'", 51, "6607299456008192");
-    default:
-        return emptyString();
-    }
+    // TODO: Add a switch here when there are properties that we intend to deprecate.
+    // Returning an empty string for now.
+    return emptyString();
 }
 
 void Deprecation::countDeprecation(const LocalFrame* frame, UseCounter::Feature feature)