Modify extension request IPC messages to pass a ListValue instead of a string.

chrome/browser/extensions/extension_function.cc

 // Copyright (c) 2009 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 "chrome/browser/extensions/extension_function.h"
 
-#include "base/json_reader.h"
 #include "base/json_writer.h"
 #include "base/logging.h"
 #include "chrome/browser/extensions/extension_function_dispatcher.h"
 
-void AsyncExtensionFunction::SetArgs(const std::string& args) {
+void AsyncExtensionFunction::SetArgs(const Value* args) {
   DCHECK(!args_);  // Should only be called once.
-  if (!args.empty()) {
-    JSONReader reader;
-    args_ = reader.JsonToValue(args, false, false);
-
-    // Since we do the serialization in the v8 extension, we should always get
-    // valid JSON.
-    if (!args_) {
-      DCHECK(false);
-      return;
-    }
-  }
+  args_ = args->DeepCopy();
 }
 
 const std::string AsyncExtensionFunction::GetResult() {
   std::string json;
   // Some functions might not need to return any results.
   if (result_.get())
     JSONWriter::Write(result_.get(), false, &json);
   return json;
 }
 
 void AsyncExtensionFunction::SendResponse(bool success) {
   if (!dispatcher())
     return;
   if (bad_message_) {
     dispatcher()->HandleBadMessage(this);
   } else {
     dispatcher()->SendResponse(this, success);
   }
 }
 
 std::string AsyncExtensionFunction::extension_id() {
   DCHECK(dispatcher());
   return dispatcher()->extension_id();
 }
 
 Profile* AsyncExtensionFunction::profile() {
   DCHECK(dispatcher());
   return dispatcher()->profile();
 }