Replace Handle with Local in core/animation/*

Source/core/animation/AnimationTestHelper.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef AnimationTestHelper_h
 #define AnimationTestHelper_h
 
 #include "wtf/text/WTFString.h"
 #include <v8.h>
 
 namespace blink {
 
-v8::Handle<v8::Value> stringToV8Value(String);
+v8::Local<v8::Value> stringToV8Value(String);
 
-v8::Handle<v8::Value> doubleToV8Value(double);
+v8::Local<v8::Value> doubleToV8Value(double);
 
-void setV8ObjectPropertyAsString(v8::Handle<v8::Object>, String, String);
+void setV8ObjectPropertyAsString(v8::Local<v8::Object>, String, String);
 
-void setV8ObjectPropertyAsNumber(v8::Handle<v8::Object>, String, double);
+void setV8ObjectPropertyAsNumber(v8::Local<v8::Object>, String, double);
 
 } // namespace blink
 
 #endif // AnimationTestHelper_h