Remove unused V8 integration code in Sky

sky/engine/bindings/core/v8/V8Binding.h

Index: sky/engine/bindings/core/v8/V8Binding.h
diff --git a/sky/engine/bindings/core/v8/V8Binding.h b/sky/engine/bindings/core/v8/V8Binding.h
deleted file mode 100644
index ba4697631a5dd2dd01f07378b1b4dbebccb845da..0000000000000000000000000000000000000000
--- a/sky/engine/bindings/core/v8/V8Binding.h
+++ /dev/null
@@ -1,764 +0,0 @@
-/*
-* Copyright (C) 2009 Google Inc. All rights reserved.
-* Copyright (C) 2012 Ericsson AB. All rights reserved.
-*
-* Redistribution and use in source and binary forms, with or without
-* modification, are permitted provided that the following conditions are
-* met:
-*
-*     * Redistributions of source code must retain the above copyright
-* notice, this list of conditions and the following disclaimer.
-*     * Redistributions in binary form must reproduce the above
-* copyright notice, this list of conditions and the following disclaimer
-* in the documentation and/or other materials provided with the
-* distribution.
-*     * Neither the name of Google Inc. nor the names of its
-* contributors may be used to endorse or promote products derived from
-* this software without specific prior written permission.
-*
-* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
-
-#ifndef SKY_ENGINE_BINDINGS_CORE_V8_V8BINDING_H_
-#define SKY_ENGINE_BINDINGS_CORE_V8_V8BINDING_H_
-
-#include "sky/engine/bindings/core/v8/DOMWrapperWorld.h"
-#include "sky/engine/bindings/core/v8/ExceptionMessages.h"
-#include "sky/engine/bindings/core/v8/ScriptValue.h"
-#include "sky/engine/bindings/core/v8/ScriptWrappable.h"
-#include "sky/engine/bindings/core/v8/V8BindingMacros.h"
-#include "sky/engine/bindings/core/v8/V8PerIsolateData.h"
-#include "sky/engine/bindings/core/v8/V8StringResource.h"
-#include "sky/engine/bindings/core/v8/V8ThrowException.h"
-#include "sky/engine/bindings/core/v8/V8ValueCache.h"
-#include "sky/engine/wtf/GetPtr.h"
-#include "sky/engine/wtf/MathExtras.h"
-#include "sky/engine/wtf/text/AtomicString.h"
-#include "v8/include/v8.h"
-
-namespace blink {
-
-class LocalDOMWindow;
-class Document;
-class EventListener;
-class ExecutionContext;
-class ExceptionState;
-class LocalFrame;
-
-namespace TraceEvent {
-class ConvertableToTraceFormat;
-}
-
-const int kMaxRecursionDepth = 22;
-
-// Helpers for throwing JavaScript TypeErrors for arity mismatches.
-void setArityTypeError(ExceptionState&, const char* valid, unsigned provided);
-v8::Local<v8::Value> createMinimumArityTypeErrorForMethod(const char* method, const char* type, unsigned expected, unsigned provided, v8::Isolate*);
-v8::Local<v8::Value> createMinimumArityTypeErrorForConstructor(const char* type, unsigned expected, unsigned provided, v8::Isolate*);
-void setMinimumArityTypeError(ExceptionState&, unsigned expected, unsigned provided);
-
-v8::ArrayBuffer::Allocator* v8ArrayBufferAllocator();
-
-template<typename CallbackInfo, typename V>
-inline void v8SetReturnValue(const CallbackInfo& info, V v)
-{
-    info.GetReturnValue().Set(v);
-}
-
-template<typename CallbackInfo>
-inline void v8SetReturnValueBool(const CallbackInfo& info, bool v)
-{
-    info.GetReturnValue().Set(v);
-}
-
-template<typename CallbackInfo>
-inline void v8SetReturnValueInt(const CallbackInfo& info, int v)
-{
-    info.GetReturnValue().Set(v);
-}
-
-template<typename CallbackInfo>
-inline void v8SetReturnValueUnsigned(const CallbackInfo& info, unsigned v)
-{
-    info.GetReturnValue().Set(v);
-}
-
-template<typename CallbackInfo>
-inline void v8SetReturnValueNull(const CallbackInfo& info)
-{
-    info.GetReturnValue().SetNull();
-}
-
-template<typename CallbackInfo>
-inline void v8SetReturnValueUndefined(const CallbackInfo& info)
-{
-    info.GetReturnValue().SetUndefined();
-}
-
-template<typename CallbackInfo>
-inline void v8SetReturnValueEmptyString(const CallbackInfo& info)
-{
-    info.GetReturnValue().SetEmptyString();
-}
-
-template <class CallbackInfo>
-inline void v8SetReturnValueString(const CallbackInfo& info, const String& string, v8::Isolate* isolate)
-{
-    if (string.isNull()) {
-        v8SetReturnValueEmptyString(info);
-        return;
-    }
-    V8PerIsolateData::from(isolate)->stringCache()->setReturnValueFromString(info.GetReturnValue(), string.impl());
-}
-
-template <class CallbackInfo>
-inline void v8SetReturnValueStringOrNull(const CallbackInfo& info, const String& string, v8::Isolate* isolate)
-{
-    if (string.isNull()) {
-        v8SetReturnValueNull(info);
-        return;
-    }
-    V8PerIsolateData::from(isolate)->stringCache()->setReturnValueFromString(info.GetReturnValue(), string.impl());
-}
-
-template <class CallbackInfo>
-inline void v8SetReturnValueStringOrUndefined(const CallbackInfo& info, const String& string, v8::Isolate* isolate)
-{
-    if (string.isNull()) {
-        v8SetReturnValueUndefined(info);
-        return;
-    }
-    V8PerIsolateData::from(isolate)->stringCache()->setReturnValueFromString(info.GetReturnValue(), string.impl());
-}
-
-// Convert v8::String to a WTF::String. If the V8 string is not already
-// an external string then it is transformed into an external string at this
-// point to avoid repeated conversions.
-inline String toCoreString(v8::Handle<v8::String> value)
-{
-    return v8StringToWebCoreString<String>(value, Externalize);
-}
-
-inline String toCoreStringWithNullCheck(v8::Handle<v8::String> value)
-{
-    if (value.IsEmpty() || value->IsNull())
-        return String();
-    return toCoreString(value);
-}
-
-inline String toCoreStringWithUndefinedOrNullCheck(v8::Handle<v8::String> value)
-{
-    if (value.IsEmpty() || value->IsNull() || value->IsUndefined())
-        return String();
-    return toCoreString(value);
-}
-
-inline AtomicString toCoreAtomicString(v8::Handle<v8::String> value)
-{
-    return v8StringToWebCoreString<AtomicString>(value, Externalize);
-}
-
-// This method will return a null String if the v8::Value does not contain a v8::String.
-// It will not call ToString() on the v8::Value. If you want ToString() to be called,
-// please use the TONATIVE_FOR_V8STRINGRESOURCE_*() macros instead.
-inline String toCoreStringWithUndefinedOrNullCheck(v8::Handle<v8::Value> value)
-{
-    if (value.IsEmpty() || !value->IsString())
-        return String();
-    return toCoreString(value.As<v8::String>());
-}
-
-// Convert a string to a V8 string.
-// Return a V8 external string that shares the underlying buffer with the given
-// WebCore string. The reference counting mechanism is used to keep the
-// underlying buffer alive while the string is still live in the V8 engine.
-inline v8::Handle<v8::String> v8String(v8::Isolate* isolate, const String& string)
-{
-    if (string.isNull())
-        return v8::String::Empty(isolate);
-    return V8PerIsolateData::from(isolate)->stringCache()->v8ExternalString(string.impl(), isolate);
-}
-
-inline v8::Handle<v8::String> v8AtomicString(v8::Isolate* isolate, const char* str)
-{
-    ASSERT(isolate);
-    return v8::String::NewFromUtf8(isolate, str, v8::String::kInternalizedString, strlen(str));
-}
-
-inline v8::Handle<v8::String> v8AtomicString(v8::Isolate* isolate, const char* str, size_t length)
-{
-    ASSERT(isolate);
-    return v8::String::NewFromUtf8(isolate, str, v8::String::kInternalizedString, length);
-}
-
-inline v8::Handle<v8::Value> v8Undefined()
-{
-    return v8::Handle<v8::Value>();
-}
-
-// Converts a DOM object to a v8 value.
-// This is a no-inline version of toV8(). If you want to call toV8()
-// without creating #include cycles, you can use this function instead.
-// Each specialized implementation will be generated.
-template<typename T>
-v8::Handle<v8::Value> toV8NoInline(T* impl, v8::Handle<v8::Object> creationContext, v8::Isolate*);
-
-template <typename T>
-struct V8ValueTraits {
-    static v8::Handle<v8::Value> toV8Value(const T& value, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate)
-    {
-        if (!WTF::getPtr(value))
-            return v8::Null(isolate);
-        return toV8NoInline(WTF::getPtr(value), creationContext, isolate);
-    }
-};
-
-template<>
-struct V8ValueTraits<String> {
-    static inline v8::Handle<v8::Value> toV8Value(const String& value, v8::Handle<v8::Object>, v8::Isolate* isolate)
-    {
-        return v8String(isolate, value);
-    }
-};
-
-template<>
-struct V8ValueTraits<AtomicString> {
-    static inline v8::Handle<v8::Value> toV8Value(const AtomicString& value, v8::Handle<v8::Object>, v8::Isolate* isolate)
-    {
-        return v8String(isolate, value);
-    }
-};
-
-template<size_t n>
-struct V8ValueTraits<char[n]> {
-    static inline v8::Handle<v8::Value> toV8Value(char const (&value)[n], v8::Handle<v8::Object>, v8::Isolate* isolate)
-    {
-        return v8String(isolate, value);
-    }
-};
-
-template<size_t n>
-struct V8ValueTraits<char const[n]> {
-    static inline v8::Handle<v8::Value> toV8Value(char const (&value)[n], v8::Handle<v8::Object>, v8::Isolate* isolate)
-    {
-        return v8String(isolate, value);
-    }
-};
-
-template<>
-struct V8ValueTraits<const char*> {
-    static inline v8::Handle<v8::Value> toV8Value(const char* const& value, v8::Handle<v8::Object>, v8::Isolate* isolate)
-    {
-        if (!value) {
-            // We return an empty string, not null, in order to align
-            // with v8String(isolate, String()).
-            return v8::String::Empty(isolate);
-        }
-        return v8String(isolate, value);
-    }
-};
-
-template<>
-struct V8ValueTraits<char*> {
-    static inline v8::Handle<v8::Value> toV8Value(char* const& value, v8::Handle<v8::Object> object, v8::Isolate* isolate)
-    {
-        return V8ValueTraits<const char*>::toV8Value(value, object, isolate);
-    }
-};
-
-template<>
-struct V8ValueTraits<int> {
-    static inline v8::Handle<v8::Value> toV8Value(const int& value, v8::Handle<v8::Object>, v8::Isolate* isolate)
-    {
-        return v8::Integer::New(isolate, value);
-    }
-};
-
-template<>
-struct V8ValueTraits<long> {
-    static inline v8::Handle<v8::Value> toV8Value(const long& value, v8::Handle<v8::Object>, v8::Isolate* isolate)
-    {
-        return v8::Integer::New(isolate, value);
-    }
-};
-
-template<>
-struct V8ValueTraits<unsigned> {
-    static inline v8::Handle<v8::Value> toV8Value(const unsigned& value, v8::Handle<v8::Object>, v8::Isolate* isolate)
-    {
-        return v8::Integer::NewFromUnsigned(isolate, value);
-    }
-};
-
-template<>
-struct V8ValueTraits<unsigned long> {
-    static inline v8::Handle<v8::Value> toV8Value(const unsigned long& value, v8::Handle<v8::Object>, v8::Isolate* isolate)
-    {
-        return v8::Integer::NewFromUnsigned(isolate, value);
-    }
-};
-
-template<>
-struct V8ValueTraits<float> {
-    static inline v8::Handle<v8::Value> toV8Value(const float& value, v8::Handle<v8::Object>, v8::Isolate* isolate)
-    {
-        return v8::Number::New(isolate, value);
-    }
-};
-
-template<>
-struct V8ValueTraits<double> {
-    static inline v8::Handle<v8::Value> toV8Value(const double& value, v8::Handle<v8::Object>, v8::Isolate* isolate)
-    {
-        return v8::Number::New(isolate, value);
-    }
-};
-
-template<>
-struct V8ValueTraits<bool> {
-    static inline v8::Handle<v8::Value> toV8Value(const bool& value, v8::Handle<v8::Object>, v8::Isolate* isolate)
-    {
-        return v8::Boolean::New(isolate, value);
-    }
-};
-
-// V8NullType and V8UndefinedType are used only for the value conversion.
-class V8NullType { };
-class V8UndefinedType { };
-
-template<>
-struct V8ValueTraits<V8NullType> {
-    static inline v8::Handle<v8::Value> toV8Value(const V8NullType&, v8::Handle<v8::Object>, v8::Isolate* isolate)
-    {
-        return v8::Null(isolate);
-    }
-};
-
-template<>
-struct V8ValueTraits<V8UndefinedType> {
-    static inline v8::Handle<v8::Value> toV8Value(const V8UndefinedType&, v8::Handle<v8::Object>, v8::Isolate* isolate)
-    {
-        return v8::Undefined(isolate);
-    }
-};
-
-template<>
-struct V8ValueTraits<ScriptValue> {
-    static inline v8::Handle<v8::Value> toV8Value(const ScriptValue& value, v8::Handle<v8::Object>, v8::Isolate*)
-    {
-        return value.v8Value();
-    }
-};
-
-template<>
-struct V8ValueTraits<v8::Handle<v8::Value> > {
-    static inline v8::Handle<v8::Value> toV8Value(const v8::Handle<v8::Value>& value, v8::Handle<v8::Object>, v8::Isolate*)
-    {
-        return value;
-    }
-};
-
-template<>
-struct V8ValueTraits<v8::Local<v8::Value> > {
-    static inline v8::Handle<v8::Value> toV8Value(const v8::Local<v8::Value>& value, v8::Handle<v8::Object>, v8::Isolate*)
-    {
-        return value;
-    }
-};
-
-template<typename T, size_t inlineCapacity>
-v8::Handle<v8::Value> v8Array(const Vector<T, inlineCapacity>& iterator, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate)
-{
-    v8::Local<v8::Array> result = v8::Array::New(isolate, iterator.size());
-    int index = 0;
-    typename Vector<T, inlineCapacity>::const_iterator end = iterator.end();
-    typedef V8ValueTraits<T> TraitsType;
-    for (typename Vector<T, inlineCapacity>::const_iterator iter = iterator.begin(); iter != end; ++iter)
-        result->Set(v8::Integer::New(isolate, index++), TraitsType::toV8Value(*iter, creationContext, isolate));
-    return result;
-}
-
-template <typename T, size_t inlineCapacity, typename Allocator>
-struct V8ValueTraits<WTF::Vector<T, inlineCapacity, Allocator> > {
-    static v8::Handle<v8::Value> toV8Value(const Vector<T, inlineCapacity, Allocator>& value, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate)
-    {
-        return v8Array(value, creationContext, isolate);
-    }
-};
-
-template <typename T, size_t inlineCapacity>
-struct V8ValueTraits<Vector<T, inlineCapacity> > {
-    static v8::Handle<v8::Value> toV8Value(const Vector<T, inlineCapacity>& value, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate)
-    {
-        return v8Array(value, creationContext, isolate);
-    }
-};
-
-// Conversion flags, used in toIntXX/toUIntXX.
-enum IntegerConversionConfiguration {
-    NormalConversion,
-    EnforceRange,
-    Clamp
-};
-
-// Convert a value to a 8-bit signed integer. The conversion fails if the
-// value cannot be converted to a number or the range violated per WebIDL:
-// http://www.w3.org/TR/WebIDL/#es-byte
-int8_t toInt8(v8::Handle<v8::Value>, IntegerConversionConfiguration, ExceptionState&);
-inline int8_t toInt8(v8::Handle<v8::Value> value, ExceptionState& exceptionState)
-{
-    return toInt8(value, NormalConversion, exceptionState);
-}
-
-// Convert a value to a 8-bit integer assuming the conversion cannot fail.
-int8_t toInt8(v8::Handle<v8::Value>);
-
-// Convert a value to a 8-bit unsigned integer. The conversion fails if the
-// value cannot be converted to a number or the range violated per WebIDL:
-// http://www.w3.org/TR/WebIDL/#es-octet
-uint8_t toUInt8(v8::Handle<v8::Value>, IntegerConversionConfiguration, ExceptionState&);
-inline uint8_t toUInt8(v8::Handle<v8::Value> value, ExceptionState& exceptionState)
-{
-    return toUInt8(value, NormalConversion, exceptionState);
-}
-
-// Convert a value to a 8-bit unsigned integer assuming the conversion cannot fail.
-uint8_t toUInt8(v8::Handle<v8::Value>);
-
-// Convert a value to a 16-bit signed integer. The conversion fails if the
-// value cannot be converted to a number or the range violated per WebIDL:
-// http://www.w3.org/TR/WebIDL/#es-short
-int16_t toInt16(v8::Handle<v8::Value>, IntegerConversionConfiguration, ExceptionState&);
-inline int16_t toInt16(v8::Handle<v8::Value> value, ExceptionState& exceptionState)
-{
-    return toInt16(value, NormalConversion, exceptionState);
-}
-
-// Convert a value to a 16-bit integer assuming the conversion cannot fail.
-int16_t toInt16(v8::Handle<v8::Value>);
-
-// Convert a value to a 16-bit unsigned integer. The conversion fails if the
-// value cannot be converted to a number or the range violated per WebIDL:
-// http://www.w3.org/TR/WebIDL/#es-unsigned-short
-uint16_t toUInt16(v8::Handle<v8::Value>, IntegerConversionConfiguration, ExceptionState&);
-inline uint16_t toUInt16(v8::Handle<v8::Value> value, ExceptionState& exceptionState)
-{
-    return toUInt16(value, NormalConversion, exceptionState);
-}
-
-// Convert a value to a 16-bit unsigned integer assuming the conversion cannot fail.
-uint16_t toUInt16(v8::Handle<v8::Value>);
-
-// Convert a value to a 32-bit signed integer. The conversion fails if the
-// value cannot be converted to a number or the range violated per WebIDL:
-// http://www.w3.org/TR/WebIDL/#es-long
-int32_t toInt32(v8::Handle<v8::Value>, IntegerConversionConfiguration, ExceptionState&);
-inline int32_t toInt32(v8::Handle<v8::Value> value, ExceptionState& exceptionState)
-{
-    return toInt32(value, NormalConversion, exceptionState);
-}
-
-// Convert a value to a 32-bit integer assuming the conversion cannot fail.
-int32_t toInt32(v8::Handle<v8::Value>);
-
-// Convert a value to a 32-bit unsigned integer. The conversion fails if the
-// value cannot be converted to a number or the range violated per WebIDL:
-// http://www.w3.org/TR/WebIDL/#es-unsigned-long
-uint32_t toUInt32(v8::Handle<v8::Value>, IntegerConversionConfiguration, ExceptionState&);
-inline uint32_t toUInt32(v8::Handle<v8::Value> value, ExceptionState& exceptionState)
-{
-    return toUInt32(value, NormalConversion, exceptionState);
-}
-
-// Convert a value to a 32-bit unsigned integer assuming the conversion cannot fail.
-uint32_t toUInt32(v8::Handle<v8::Value>);
-
-// Convert a value to a 64-bit signed integer. The conversion fails if the
-// value cannot be converted to a number or the range violated per WebIDL:
-// http://www.w3.org/TR/WebIDL/#es-long-long
-int64_t toInt64(v8::Handle<v8::Value>, IntegerConversionConfiguration, ExceptionState&);
-inline int64_t toInt64(v8::Handle<v8::Value> value, ExceptionState& exceptionState)
-{
-    return toInt64(value, NormalConversion, exceptionState);
-}
-
-// Convert a value to a 64-bit integer assuming the conversion cannot fail.
-int64_t toInt64(v8::Handle<v8::Value>);
-
-// Convert a value to a 64-bit unsigned integer. The conversion fails if the
-// value cannot be converted to a number or the range violated per WebIDL:
-// http://www.w3.org/TR/WebIDL/#es-unsigned-long-long
-uint64_t toUInt64(v8::Handle<v8::Value>, IntegerConversionConfiguration, ExceptionState&);
-inline uint64_t toUInt64(v8::Handle<v8::Value> value, ExceptionState& exceptionState)
-{
-    return toUInt64(value, NormalConversion, exceptionState);
-}
-
-// Convert a value to a 64-bit unsigned integer assuming the conversion cannot fail.
-uint64_t toUInt64(v8::Handle<v8::Value>);
-
-// Convert a value to a single precision float, which might fail.
-float toFloat(v8::Handle<v8::Value>, ExceptionState&);
-
-// Convert a value to a single precision float assuming the conversion cannot fail.
-inline float toFloat(v8::Local<v8::Value> value)
-{
-    return static_cast<float>(value->NumberValue());
-}
-
-// Converts a value to a String, throwing if any code unit is outside 0-255.
-String toByteString(v8::Handle<v8::Value>, ExceptionState&);
-
-// Converts a value to a String, replacing unmatched UTF-16 surrogates with replacement characters.
-String toScalarValueString(v8::Handle<v8::Value>, ExceptionState&);
-
-inline v8::Handle<v8::Boolean> v8Boolean(bool value, v8::Isolate* isolate)
-{
-    return value ? v8::True(isolate) : v8::False(isolate);
-}
-
-inline double toCoreDate(v8::Handle<v8::Value> object)
-{
-    if (object->IsDate())
-        return v8::Handle<v8::Date>::Cast(object)->ValueOf();
-    if (object->IsNumber())
-        return object->NumberValue();
-    return std::numeric_limits<double>::quiet_NaN();
-}
-
-inline v8::Handle<v8::Value> v8DateOrNaN(double value, v8::Isolate* isolate)
-{
-    ASSERT(isolate);
-    return v8::Date::New(isolate, std::isfinite(value) ? value : std::numeric_limits<double>::quiet_NaN());
-}
-
-template<class T> struct NativeValueTraits;
-
-template<>
-struct NativeValueTraits<String> {
-    static inline String nativeValue(const v8::Handle<v8::Value>& value, v8::Isolate* isolate)
-    {
-        TOSTRING_DEFAULT(V8StringResource<>, stringValue, value, String());
-        return stringValue;
-    }
-};
-
-template<>
-struct NativeValueTraits<unsigned> {
-    static inline unsigned nativeValue(const v8::Handle<v8::Value>& value, v8::Isolate* isolate)
-    {
-        return toUInt32(value);
-    }
-};
-
-template<>
-struct NativeValueTraits<float> {
-    static inline float nativeValue(const v8::Handle<v8::Value>& value, v8::Isolate* isolate)
-    {
-        return static_cast<float>(value->NumberValue());
-    }
-};
-
-template<>
-struct NativeValueTraits<double> {
-    static inline double nativeValue(const v8::Handle<v8::Value>& value, v8::Isolate* isolate)
-    {
-        return static_cast<double>(value->NumberValue());
-    }
-};
-
-template<>
-struct NativeValueTraits<v8::Handle<v8::Value> > {
-    static inline v8::Handle<v8::Value> nativeValue(const v8::Handle<v8::Value>& value, v8::Isolate* isolate)
-    {
-        return value;
-    }
-};
-
-template<>
-struct NativeValueTraits<ScriptValue> {
-    static inline ScriptValue nativeValue(const v8::Handle<v8::Value>& value, v8::Isolate* isolate)
-    {
-        return ScriptValue(ScriptState::current(isolate), value);
-    }
-};
-
-v8::Handle<v8::Value> toV8Sequence(v8::Handle<v8::Value>, uint32_t& length, v8::Isolate*);
-
-// Converts a JavaScript value to an array as per the Web IDL specification:
-// http://www.w3.org/TR/2012/CR-WebIDL-20120419/#es-array
-template <class T>
-Vector<T> toNativeArray(v8::Handle<v8::Value> value, int argumentIndex, v8::Isolate* isolate)
-{
-    v8::Local<v8::Value> v8Value(v8::Local<v8::Value>::New(isolate, value));
-    uint32_t length = 0;
-    if (value->IsArray()) {
-        length = v8::Local<v8::Array>::Cast(v8Value)->Length();
-    } else if (toV8Sequence(value, length, isolate).IsEmpty()) {
-        V8ThrowException::throwTypeError(ExceptionMessages::notAnArrayTypeArgumentOrValue(argumentIndex), isolate);
-        return Vector<T>();
-    }
-
-    Vector<T> result;
-    result.reserveInitialCapacity(length);
-    typedef NativeValueTraits<T> TraitsType;
-    v8::Local<v8::Object> object = v8::Local<v8::Object>::Cast(v8Value);
-    for (uint32_t i = 0; i < length; ++i)
-        result.uncheckedAppend(TraitsType::nativeValue(object->Get(i), isolate));
-    return result;
-}
-
-template <class T>
-Vector<T> toNativeArguments(const v8::FunctionCallbackInfo<v8::Value>& info, int startIndex)
-{
-    ASSERT(startIndex <= info.Length());
-    Vector<T> result;
-    typedef NativeValueTraits<T> TraitsType;
-    int length = info.Length();
-    result.reserveInitialCapacity(length);
-    for (int i = startIndex; i < length; ++i)
-        result.uncheckedAppend(TraitsType::nativeValue(info[i], info.GetIsolate()));
-    return result;
-}
-
-// Validates that the passed object is a sequence type per WebIDL spec
-// http://www.w3.org/TR/2012/CR-WebIDL-20120419/#es-sequence
-inline v8::Handle<v8::Value> toV8Sequence(v8::Handle<v8::Value> value, uint32_t& length, v8::Isolate* isolate)
-{
-    // Attempt converting to a sequence if the value is not already an array but is
-    // any kind of object except for a native Date object or a native RegExp object.
-    ASSERT(!value->IsArray());
-    // FIXME: Do we really need to special case Date and RegExp object?
-    // https://www.w3.org/Bugs/Public/show_bug.cgi?id=22806
-    if (!value->IsObject() || value->IsDate() || value->IsRegExp()) {
-        // The caller is responsible for reporting a TypeError.
-        return v8Undefined();
-    }
-
-    v8::Local<v8::Value> v8Value(v8::Local<v8::Value>::New(isolate, value));
-    v8::Local<v8::Object> object = v8::Local<v8::Object>::Cast(v8Value);
-    v8::Local<v8::String> lengthSymbol = v8AtomicString(isolate, "length");
-
-    // FIXME: The specification states that the length property should be used as fallback, if value
-    // is not a platform object that supports indexed properties. If it supports indexed properties,
-    // length should actually be one greater than value’s maximum indexed property index.
-    TONATIVE_EXCEPTION(v8::Local<v8::Value>, lengthValue, object->Get(lengthSymbol));
-
-    if (lengthValue->IsUndefined() || lengthValue->IsNull()) {
-        // The caller is responsible for reporting a TypeError.
-        return v8Undefined();
-    }
-
-    TONATIVE_EXCEPTION(uint32_t, sequenceLength, lengthValue->Int32Value());
-    length = sequenceLength;
-    return v8Value;
-}
-
-v8::Isolate* toIsolate(ExecutionContext*);
-v8::Isolate* toIsolate(LocalFrame*);
-
-LocalDOMWindow* toDOMWindow(v8::Handle<v8::Value>, v8::Isolate*);
-LocalDOMWindow* toDOMWindow(v8::Handle<v8::Context>);
-LocalDOMWindow* enteredDOMWindow(v8::Isolate*);
-LocalDOMWindow* currentDOMWindow(v8::Isolate*);
-LocalDOMWindow* callingDOMWindow(v8::Isolate*);
-ExecutionContext* toExecutionContext(v8::Handle<v8::Context>);
-ExecutionContext* currentExecutionContext(v8::Isolate*);
-ExecutionContext* callingExecutionContext(v8::Isolate*);
-
-// Returns a V8 context associated with a ExecutionContext and a DOMWrapperWorld.
-// This method returns an empty context if there is no frame or the frame is already detached.
-v8::Local<v8::Context> toV8Context(ExecutionContext*, DOMWrapperWorld&);
-// Returns a V8 context associated with a LocalFrame and a DOMWrapperWorld.
-// This method returns an empty context if the frame is already detached.
-v8::Local<v8::Context> toV8Context(LocalFrame*, DOMWrapperWorld&);
-
-// Returns the frame object of the window object associated with
-// a context, if the window is currently being displayed in the LocalFrame.
-LocalFrame* toFrameIfNotDetached(v8::Handle<v8::Context>);
-
-// If the current context causes out of memory, JavaScript setting
-// is disabled and it returns true.
-bool handleOutOfMemory();
-void crashIfV8IsDead();
-
-inline bool isUndefinedOrNull(v8::Handle<v8::Value> value)
-{
-    return value->IsNull() || value->IsUndefined();
-}
-v8::Handle<v8::Function> getBoundFunction(v8::Handle<v8::Function>);
-
-// Attaches |environment| to |function| and returns it.
-inline v8::Local<v8::Function> createClosure(v8::FunctionCallback function, v8::Handle<v8::Value> environment, v8::Isolate* isolate)
-{
-    return v8::Function::New(isolate, function, environment);
-}
-
-// FIXME: This will be soon embedded in the generated code.
-template<class Collection> static void indexedPropertyEnumerator(const v8::PropertyCallbackInfo<v8::Array>& info)
-{
-    Collection* collection = toScriptWrappableBase(info.Holder())->toImpl<Collection>();
-    int length = collection->length();
-    v8::Handle<v8::Array> properties = v8::Array::New(info.GetIsolate(), length);
-    for (int i = 0; i < length; ++i) {
-        // FIXME: Do we need to check that the item function returns a non-null value for this index?
-        v8::Handle<v8::Integer> integer = v8::Integer::New(info.GetIsolate(), i);
-        properties->Set(integer, integer);
-    }
-    v8SetReturnValue(info, properties);
-}
-
-// These methods store hidden values into an array that is stored in the internal field of a DOM wrapper.
-void addHiddenValueToArray(v8::Handle<v8::Object>, v8::Local<v8::Value>, int cacheIndex, v8::Isolate*);
-void removeHiddenValueFromArray(v8::Handle<v8::Object>, v8::Local<v8::Value>, int cacheIndex, v8::Isolate*);
-void moveEventListenerToNewWrapper(v8::Handle<v8::Object>, EventListener* oldValue, v8::Local<v8::Value> newValue, int cacheIndex, v8::Isolate*);
-
-PassRefPtr<JSONValue> v8ToJSONValue(v8::Isolate*, v8::Handle<v8::Value>, int);
-
-// Result values for platform object 'deleter' methods,
-// http://www.w3.org/TR/WebIDL/#delete
-enum DeleteResult {
-    DeleteSuccess,
-    DeleteReject,
-    DeleteUnknownProperty
-};
-
-class V8TestingScope {
-public:
-    explicit V8TestingScope(v8::Isolate*);
-    ScriptState* scriptState() const;
-    v8::Isolate* isolate() const;
-    ~V8TestingScope();
-
-private:
-    v8::HandleScope m_handleScope;
-    v8::Context::Scope m_contextScope;
-    RefPtr<ScriptState> m_scriptState;
-};
-
-class V8RethrowTryCatchScope final {
-public:
-    explicit V8RethrowTryCatchScope(v8::TryCatch& block) : m_block(block) { }
-    ~V8RethrowTryCatchScope()
-    {
-        // ReThrow() is a no-op if no exception has been caught, so always call.
-        m_block.ReThrow();
-    }
-
-private:
-    v8::TryCatch& m_block;
-};
-
-} // namespace blink
-
-#endif  // SKY_ENGINE_BINDINGS_CORE_V8_V8BINDING_H_