Replace Handle with Local in core/animation/*

Source/core/animation/AnimationTestHelper.h

Index: Source/core/animation/AnimationTestHelper.h
diff --git a/Source/core/animation/AnimationTestHelper.h b/Source/core/animation/AnimationTestHelper.h
index 602a514880f0a4e3475a79d1d81fac20bc5fb198..f705b7086e27effda3b420a7ba3ce94244a24a4c 100644
--- a/Source/core/animation/AnimationTestHelper.h
+++ b/Source/core/animation/AnimationTestHelper.h
@@ -10,13 +10,13 @@
 
 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