Deprecate webkitRequestAnimationFrame and friends as vendor-specific

Intent to Deprecate:
https://groups.google.com/a/chromium.org/d/msg/blink-dev/nNsZDn_utUc/dUtD3ulsFMkJ

BUG=354921

Review URL: https://codereview.chromium.org/208263005

git-svn-id: svn://svn.chromium.org/blink/trunk@169924 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/LayoutTests/fast/animation/request-animation-frame-prefix-expected.txt

+CONSOLE WARNING: 'webkitRequestAnimationFrame' is vendor-specific. Please use the standard 'requestAnimationFrame' instead.
 Tests the timestamps provided to prefixed webkitRequestAnimationFrame callbacks
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".

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

@@ -685,6 +685,15 @@ String UseCounter::deprecationMessage(Feature feature)
     case PrefixedGamepad:
         return "'navigator.webkitGetGamepads' is deprecated. Please use 'navigator.getGamepads' instead.";
 
+    case PrefixedRequestAnimationFrame:
+        return "'webkitRequestAnimationFrame' is vendor-specific. Please use the standard 'requestAnimationFrame' instead.";
+
+    case PrefixedCancelAnimationFrame:
+        return "'webkitCancelAnimationFrame' is vendor-specific. Please use the standard 'cancelAnimationFrame' instead.";
+
+    case PrefixedCancelRequestAnimationFrame:
+        return "'webkitCancelRequestAnimationFrame' is vendor-specific. Please use the standard 'cancelAnimationFrame' instead.";
+
     // Features that aren't deprecated don't have a deprecation message.
     default:
         return String();

third_party/WebKit/Source/core/frame/UseCounter.h

@@ -318,6 +318,8 @@ public:
         AnimationConstructorKeyframeListEffectDoubleTiming = 301,
         AnimationConstructorKeyframeListEffectNoTiming = 302,
         AttrSetValueWithElement = 303,
+        PrefixedCancelAnimationFrame = 304,
+        PrefixedCancelRequestAnimationFrame = 305,
         // Add new features immediately above this line. Don't change assigned
         // numbers of any item, and don't reuse removed slots.
         NumberOfFeatures, // This enum value must be last.

third_party/WebKit/Source/core/frame/Window.idl

@@ -172,9 +172,9 @@
 
     [MeasureAs=UnprefixedRequestAnimationFrame] long requestAnimationFrame(RequestAnimationFrameCallback callback);
     void cancelAnimationFrame(long id);
-    [MeasureAs=PrefixedRequestAnimationFrame] long webkitRequestAnimationFrame(RequestAnimationFrameCallback callback);
-    [ImplementedAs=cancelAnimationFrame] void webkitCancelAnimationFrame(long id);
-    [ImplementedAs=cancelAnimationFrame] void webkitCancelRequestAnimationFrame(long id); // This is a deprecated alias for webkitCancelAnimationFrame(). Remove this when removing vendor prefix.
+    [DeprecateAs=PrefixedRequestAnimationFrame] long webkitRequestAnimationFrame(RequestAnimationFrameCallback callback);
+    [DeprecateAs=PrefixedCancelAnimationFrame, ImplementedAs=cancelAnimationFrame] void webkitCancelAnimationFrame(long id);
+    [DeprecateAs=PrefixedCancelRequestAnimationFrame, ImplementedAs=cancelAnimationFrame] void webkitCancelRequestAnimationFrame(long id);
 
     [Replaceable] readonly attribute CSS CSS;