[Extensions Bindings] Add support for updateArgumentsPreValidate

extensions/renderer/api_signature.h

 // Copyright 2016 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 EXTENSIONS_RENDERER_API_SIGNATURE_H_
 #define EXTENSIONS_RENDERER_API_SIGNATURE_H_
 
 #include <memory>
 #include <vector>
 
 #include "base/macros.h"
 #include "extensions/renderer/argument_spec.h"
 #include "v8/include/v8.h"
 
 namespace base {
 class Value;
 class ListValue;
 }
 
-namespace gin {
-class Arguments;
-}
-
 namespace extensions {
 
 // A representation of the expected signature for an API method, along with the
 // ability to match provided arguments and convert them to base::Values.
 class APISignature {
  public:
   APISignature(const base::ListValue& specification);
   ~APISignature();
 
   // Parses |arguments| against this signature, and populates |args_out| with
   // the v8 values (performing no conversion). The resulting vector may differ
   // from the list of arguments passed in because it will include null-filled
   // optional arguments.
   // Returns true if the arguments were successfully parsed and converted.
-  bool ParseArgumentsToV8(gin::Arguments* arguments,
+  bool ParseArgumentsToV8(v8::Local<v8::Context> context,
+                          const std::vector<v8::Local<v8::Value>>& arguments,
                           const ArgumentSpec::RefMap& type_refs,
                           std::vector<v8::Local<v8::Value>>* args_out,
                           std::string* error) const;
 
   // Parses |arguments| against this signature, converting to a base::ListValue.
   // Returns true if the arguments were successfully parsed and converted, and
   // populates |args_out| and |callback_out| with the JSON arguments and
   // callback values, respectively. On failure, returns false populates |error|.
-  bool ParseArgumentsToJSON(gin::Arguments* arguments,
+  bool ParseArgumentsToJSON(v8::Local<v8::Context> context,
+                            const std::vector<v8::Local<v8::Value>>& arguments,
                             const ArgumentSpec::RefMap& type_refs,
                             std::unique_ptr<base::ListValue>* args_out,
                             v8::Local<v8::Function>* callback_out,
                             std::string* error) const;
 
  private:
   // The list of expected arguments.
   std::vector<std::unique_ptr<ArgumentSpec>> signature_;
 
   DISALLOW_COPY_AND_ASSIGN(APISignature);
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_RENDERER_API_SIGNATURE_H_