Replace Handle<> with Local in remaining gin/*

gin/converter.h

 // Copyright 2013 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 GIN_CONVERTER_H_
 #define GIN_CONVERTER_H_
 
 #include <string>
 #include <vector>
 
 #include "base/strings/string_piece.h"
 #include "gin/gin_export.h"
 #include "v8/include/v8.h"
 
 namespace gin {
 
 template<typename T, typename Enable = void>
 struct Converter {};
 
 template<>
 struct GIN_EXPORT Converter<bool> {
-  static v8::Handle<v8::Value> ToV8(v8::Isolate* isolate,
+  static v8::Local<v8::Value> ToV8(v8::Isolate* isolate,
                                     bool val);
   static bool FromV8(v8::Isolate* isolate,
-                     v8::Handle<v8::Value> val,
+                     v8::Local<v8::Value> val,
                      bool* out);
 };
 
 template<>
 struct GIN_EXPORT Converter<int32_t> {
-  static v8::Handle<v8::Value> ToV8(v8::Isolate* isolate,
+  static v8::Local<v8::Value> ToV8(v8::Isolate* isolate,
                                     int32_t val);
   static bool FromV8(v8::Isolate* isolate,
-                     v8::Handle<v8::Value> val,
+                     v8::Local<v8::Value> val,
                      int32_t* out);
 };
 
 template<>
 struct GIN_EXPORT Converter<uint32_t> {
-  static v8::Handle<v8::Value> ToV8(v8::Isolate* isolate,
+  static v8::Local<v8::Value> ToV8(v8::Isolate* isolate,
                                     uint32_t val);
   static bool FromV8(v8::Isolate* isolate,
-                     v8::Handle<v8::Value> val,
+                     v8::Local<v8::Value> val,
                      uint32_t* out);
 };
 
 template<>
 struct GIN_EXPORT Converter<int64_t> {
   // Warning: JavaScript cannot represent 64 integers precisely.
-  static v8::Handle<v8::Value> ToV8(v8::Isolate* isolate,
+  static v8::Local<v8::Value> ToV8(v8::Isolate* isolate,
                                     int64_t val);
   static bool FromV8(v8::Isolate* isolate,
-                     v8::Handle<v8::Value> val,
+                     v8::Local<v8::Value> val,
                      int64_t* out);
 };
 
 template<>
 struct GIN_EXPORT Converter<uint64_t> {
   // Warning: JavaScript cannot represent 64 integers precisely.
-  static v8::Handle<v8::Value> ToV8(v8::Isolate* isolate,
+  static v8::Local<v8::Value> ToV8(v8::Isolate* isolate,
                                     uint64_t val);
   static bool FromV8(v8::Isolate* isolate,
-                     v8::Handle<v8::Value> val,
+                     v8::Local<v8::Value> val,
                      uint64_t* out);
 };
 
 template<>
 struct GIN_EXPORT Converter<float> {
-  static v8::Handle<v8::Value> ToV8(v8::Isolate* isolate,
+  static v8::Local<v8::Value> ToV8(v8::Isolate* isolate,
                                     float val);
   static bool FromV8(v8::Isolate* isolate,
-                     v8::Handle<v8::Value> val,
+                     v8::Local<v8::Value> val,
                      float* out);
 };
 
 template<>
 struct GIN_EXPORT Converter<double> {
-  static v8::Handle<v8::Value> ToV8(v8::Isolate* isolate,
+  static v8::Local<v8::Value> ToV8(v8::Isolate* isolate,
                                     double val);
   static bool FromV8(v8::Isolate* isolate,
-                     v8::Handle<v8::Value> val,
+                     v8::Local<v8::Value> val,
                      double* out);
 };
 
 template<>
 struct GIN_EXPORT Converter<base::StringPiece> {
-  static v8::Handle<v8::Value> ToV8(v8::Isolate* isolate,
+  static v8::Local<v8::Value> ToV8(v8::Isolate* isolate,
                                     const base::StringPiece& val);
   // No conversion out is possible because StringPiece does not contain storage.
 };
 
 template<>
 struct GIN_EXPORT Converter<std::string> {
-  static v8::Handle<v8::Value> ToV8(v8::Isolate* isolate,
+  static v8::Local<v8::Value> ToV8(v8::Isolate* isolate,
                                     const std::string& val);
   static bool FromV8(v8::Isolate* isolate,
-                     v8::Handle<v8::Value> val,
+                     v8::Local<v8::Value> val,
                      std::string* out);
 };
 
 template<>
-struct GIN_EXPORT Converter<v8::Handle<v8::Function> > {
+struct GIN_EXPORT Converter<v8::Local<v8::Function> > {
   static bool FromV8(v8::Isolate* isolate,
-                     v8::Handle<v8::Value> val,
-                     v8::Handle<v8::Function>* out);
+                     v8::Local<v8::Value> val,
+                     v8::Local<v8::Function>* out);
 };
 
 template<>
-struct GIN_EXPORT Converter<v8::Handle<v8::Object> > {
-  static v8::Handle<v8::Value> ToV8(v8::Isolate* isolate,
-                                    v8::Handle<v8::Object> val);
+struct GIN_EXPORT Converter<v8::Local<v8::Object> > {
+  static v8::Local<v8::Value> ToV8(v8::Isolate* isolate,
+                                    v8::Local<v8::Object> val);
   static bool FromV8(v8::Isolate* isolate,
-                     v8::Handle<v8::Value> val,
-                     v8::Handle<v8::Object>* out);
+                     v8::Local<v8::Value> val,
+                     v8::Local<v8::Object>* out);
 };
 
 template<>
-struct GIN_EXPORT Converter<v8::Handle<v8::ArrayBuffer> > {
-  static v8::Handle<v8::Value> ToV8(v8::Isolate* isolate,
-                                    v8::Handle<v8::ArrayBuffer> val);
+struct GIN_EXPORT Converter<v8::Local<v8::ArrayBuffer> > {
+  static v8::Local<v8::Value> ToV8(v8::Isolate* isolate,
+                                    v8::Local<v8::ArrayBuffer> val);
   static bool FromV8(v8::Isolate* isolate,
-                     v8::Handle<v8::Value> val,
-                     v8::Handle<v8::ArrayBuffer>* out);
+                     v8::Local<v8::Value> val,
+                     v8::Local<v8::ArrayBuffer>* out);
 };
 
 template<>
-struct GIN_EXPORT Converter<v8::Handle<v8::External> > {
-  static v8::Handle<v8::Value> ToV8(v8::Isolate* isolate,
-                                    v8::Handle<v8::External> val);
+struct GIN_EXPORT Converter<v8::Local<v8::External> > {
+  static v8::Local<v8::Value> ToV8(v8::Isolate* isolate,
+                                    v8::Local<v8::External> val);
   static bool FromV8(v8::Isolate* isolate,
-                     v8::Handle<v8::Value> val,
-                     v8::Handle<v8::External>* out);
+                     v8::Local<v8::Value> val,
+                     v8::Local<v8::External>* out);
 };
 
 template<>
-struct GIN_EXPORT Converter<v8::Handle<v8::Value> > {
-  static v8::Handle<v8::Value> ToV8(v8::Isolate* isolate,
-                                    v8::Handle<v8::Value> val);
+struct GIN_EXPORT Converter<v8::Local<v8::Value> > {
+  static v8::Local<v8::Value> ToV8(v8::Isolate* isolate,
+                                    v8::Local<v8::Value> val);
   static bool FromV8(v8::Isolate* isolate,
-                     v8::Handle<v8::Value> val,
-                     v8::Handle<v8::Value>* out);
+                     v8::Local<v8::Value> val,
+                     v8::Local<v8::Value>* out);
 };
 
 template<typename T>
 struct Converter<std::vector<T> > {
-  static v8::Handle<v8::Value> ToV8(v8::Isolate* isolate,
+  static v8::Local<v8::Value> ToV8(v8::Isolate* isolate,
                                     const std::vector<T>& val) {
-    v8::Handle<v8::Array> result(
+    v8::Local<v8::Array> result(
         v8::Array::New(isolate, static_cast<int>(val.size())));
     for (size_t i = 0; i < val.size(); ++i) {
       result->Set(static_cast<int>(i), Converter<T>::ToV8(isolate, val[i]));
     }
     return result;
   }
 
   static bool FromV8(v8::Isolate* isolate,
-                     v8::Handle<v8::Value> val,
+                     v8::Local<v8::Value> val,
                      std::vector<T>* out) {
     if (!val->IsArray())
       return false;
 
     std::vector<T> result;
-    v8::Handle<v8::Array> array(v8::Handle<v8::Array>::Cast(val));
+    v8::Local<v8::Array> array(v8::Local<v8::Array>::Cast(val));
     uint32_t length = array->Length();
     for (uint32_t i = 0; i < length; ++i) {
       T item;
       if (!Converter<T>::FromV8(isolate, array->Get(i), &item))
         return false;
       result.push_back(item);
     }
 
     out->swap(result);
     return true;
   }
 };
 
 // Convenience functions that deduce T.
 template<typename T>
-v8::Handle<v8::Value> ConvertToV8(v8::Isolate* isolate, T input) {
+v8::Local<v8::Value> ConvertToV8(v8::Isolate* isolate, T input) {
   return Converter<T>::ToV8(isolate, input);
 }
 
-GIN_EXPORT inline v8::Handle<v8::String> StringToV8(
+GIN_EXPORT inline v8::Local<v8::String> StringToV8(
     v8::Isolate* isolate,
     const base::StringPiece& input) {
   return ConvertToV8(isolate, input).As<v8::String>();
 }
 
-GIN_EXPORT v8::Handle<v8::String> StringToSymbol(v8::Isolate* isolate,
+GIN_EXPORT v8::Local<v8::String> StringToSymbol(v8::Isolate* isolate,
                                                  const base::StringPiece& val);
 
 template<typename T>
-bool ConvertFromV8(v8::Isolate* isolate, v8::Handle<v8::Value> input,
+bool ConvertFromV8(v8::Isolate* isolate, v8::Local<v8::Value> input,
                    T* result) {
   return Converter<T>::FromV8(isolate, input, result);
 }
 
-GIN_EXPORT std::string V8ToString(v8::Handle<v8::Value> value);
+GIN_EXPORT std::string V8ToString(v8::Local<v8::Value> value);
 
 }  // namespace gin
 
 #endif  // GIN_CONVERTER_H_