base: Add AsList() function to Value API.

chrome/test/perf/dom_checker_uitest.cc

 // Copyright (c) 2011 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 "base/command_line.h"
 #include "base/file_path.h"
 #include "base/file_util.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/path_service.h"
 #include "base/string_split.h"
@@ skipping 157 matching lines @@
       return false;
 
     std::string json = WideToUTF8(json_wide);
     JSONStringValueSerializer deserializer(json);
     scoped_ptr<Value> value(deserializer.Deserialize(NULL, NULL));
 
     EXPECT_TRUE(value.get());
     if (!value.get())
       return false;
 
-    EXPECT_TRUE(value->IsType(Value::TYPE_LIST));
-    if (!value->IsType(Value::TYPE_LIST))
+    EXPECT_TRUE(value->AsList());
+    ListValue* list_value = value->AsList();
+    if (!list_value)
       return false;
 
-    ListValue* list_value = static_cast<ListValue*>(value.get());
-
     // The parsed JSON object will be an array of strings, each of which is a
     // test failure. Add those strings to the results set.
     ListValue::const_iterator it = list_value->begin();
     for (; it != list_value->end(); ++it) {
       EXPECT_TRUE((*it)->IsType(Value::TYPE_STRING));
       if ((*it)->IsType(Value::TYPE_STRING)) {
         std::string test_name;
         succeeded = (*it)->GetAsString(&test_name);
         EXPECT_TRUE(succeeded);
         if (succeeded)
@@ skipping 51 matching lines @@
 TEST_F(DomCheckerTest, FAILS_Http) {
   if (!CommandLine::ForCurrentProcess()->HasSwitch(kRunDomCheckerTest))
     return;
 
   ResultsList new_passes, new_failures;
   RunTest(true, &new_passes, &new_failures);
   PrintResults(new_passes, new_failures);
 }
 
 }  // namespace