Remove unused V8 integration code in Sky

sky/engine/bindings/core/v8/V8HiddenValue.cpp

Index: sky/engine/bindings/core/v8/V8HiddenValue.cpp
diff --git a/sky/engine/bindings/core/v8/V8HiddenValue.cpp b/sky/engine/bindings/core/v8/V8HiddenValue.cpp
deleted file mode 100644
index 79aecb09fa49a8d41516224318e2d24a3c1ce579..0000000000000000000000000000000000000000
--- a/sky/engine/bindings/core/v8/V8HiddenValue.cpp
+++ /dev/null
@@ -1,46 +0,0 @@
-// 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.
-
-#include "sky/engine/config.h"
-#include "sky/engine/bindings/core/v8/V8HiddenValue.h"
-
-#include "sky/engine/bindings/core/v8/ScriptWrappable.h"
-#include "sky/engine/bindings/core/v8/V8Binding.h"
-
-namespace blink {
-
-#define V8_DEFINE_METHOD(name) \
-v8::Handle<v8::String> V8HiddenValue::name(v8::Isolate* isolate)    \
-{ \
-    V8HiddenValue* hiddenValue = V8PerIsolateData::from(isolate)->hiddenValue(); \
-    if (hiddenValue->m_##name.isEmpty()) { \
-        hiddenValue->m_##name.set(isolate, v8AtomicString(isolate, #name)); \
-    } \
-    return hiddenValue->m_##name.newLocal(isolate); \
-}
-
-V8_HIDDEN_VALUES(V8_DEFINE_METHOD);
-
-v8::Local<v8::Value> V8HiddenValue::getHiddenValue(v8::Isolate* isolate, v8::Handle<v8::Object> object, v8::Handle<v8::String> key)
-{
-    return object->GetHiddenValue(key);
-}
-
-bool V8HiddenValue::setHiddenValue(v8::Isolate* isolate, v8::Handle<v8::Object> object, v8::Handle<v8::String> key, v8::Handle<v8::Value> value)
-{
-    return object->SetHiddenValue(key, value);
-}
-
-bool V8HiddenValue::deleteHiddenValue(v8::Isolate* isolate, v8::Handle<v8::Object> object, v8::Handle<v8::String> key)
-{
-    return object->DeleteHiddenValue(key);
-}
-
-v8::Local<v8::Value> V8HiddenValue::getHiddenValueFromMainWorldWrapper(v8::Isolate* isolate, ScriptWrappable* wrappable, v8::Handle<v8::String> key)
-{
-    v8::Local<v8::Object> wrapper = wrappable->newLocalWrapper(isolate);
-    return wrapper.IsEmpty() ? v8::Local<v8::Value>() : getHiddenValue(isolate, wrapper, key);
-}
-
-} // namespace blink