Refactor extension event distribution to use Values instead of JSON strings.

chrome/browser/extensions/api/web_request/web_request_api_unittest.cc

 // Copyright (c) 2012 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 <queue>
 #include <map>
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/file_util.h"
@@ skipping 569 matching lines @@
     ExtensionMsg_MessageInvoke::Param message_tuple;
     ExtensionMsg_MessageInvoke::Read(message, &message_tuple);
     ListValue& args = message_tuple.c;
 
     std::string event_name;
     if (!args.GetString(0, &event_name) ||
         event_name !=  std::string(keys::kOnSendHeaders) + "/3") {
       continue;
     }
 
-    std::string event_arg_string;
-    ASSERT_TRUE(args.GetString(1, &event_arg_string));
-
-    scoped_ptr<Value> event_arg_value(
-        JSONStringValueSerializer(event_arg_string).Deserialize(NULL, NULL));
-    ASSERT_TRUE(event_arg_value.get() &&
-                event_arg_value->IsType(Value::TYPE_LIST));
+    ListValue* event_arg = NULL;
+    ASSERT_TRUE(args.GetList(1, &event_arg));
 
     DictionaryValue* event_arg_dict = NULL;
-    ASSERT_TRUE(
-        static_cast<ListValue*>(event_arg_value.get())->GetDictionary(
-            0, &event_arg_dict));
+    ASSERT_TRUE(event_arg->GetDictionary(0, &event_arg_dict));
 
     ListValue* request_headers = NULL;
     ASSERT_TRUE(event_arg_dict->GetList(keys::kRequestHeadersKey,
                                         &request_headers));
 
     net::HttpRequestHeaders observed_headers;
     for (size_t j = 0; j < request_headers->GetSize(); ++j) {
       DictionaryValue* header = NULL;
       ASSERT_TRUE(request_headers->GetDictionary(j, &header));
       std::string key;
@@ skipping 1028 matching lines @@
         deltas, &auth3, &conflicting_extensions, &net_log);
   EXPECT_TRUE(credentials_set);
   EXPECT_FALSE(auth3.Empty());
   EXPECT_EQ(username, auth1.username());
   EXPECT_EQ(password, auth1.password());
   EXPECT_EQ(1u, conflicting_extensions.size());
   EXPECT_TRUE(ContainsKey(conflicting_extensions, "extid2"));
   EXPECT_EQ(3u, capturing_net_log.GetSize());
 }