Correct const accessors in base/values.(h|cc), Part II (ListValue)

chrome/browser/ui/webui/web_ui_browsertest.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 "chrome/browser/ui/webui/web_ui_browsertest.h"
 
 #include <string>
 #include <vector>
 
 #include "base/bind.h"
@@ skipping 569 matching lines @@
       web_ui()->RegisterMessageCallback("testFails",
           base::Bind(&AsyncWebUIMessageHandler::HandleTestFails,
                      base::Unretained(this)));
       web_ui()->RegisterMessageCallback("testPasses",
           base::Bind(&AsyncWebUIMessageHandler::HandleTestPasses,
                      base::Unretained(this)));
     }
 
     // Starts the test in |list_value|[0] with the runAsync wrapper.
     void HandleStartAsyncTest(const ListValue* list_value) {
-      Value* test_name;
+      const Value* test_name;
       ASSERT_TRUE(list_value->Get(0, &test_name));
       web_ui()->CallJavascriptFunction("runAsync", *test_name);
     }
 
     DISALLOW_COPY_AND_ASSIGN(AsyncWebUIMessageHandler);
   };
 
   // Handler for this object.
   ::testing::StrictMock<AsyncWebUIMessageHandler> message_handler_;
 
@@ skipping 97 matching lines @@
 // testDone directly and expect pass result.
 IN_PROC_BROWSER_TEST_F(WebUIBrowserAsyncTest, TestTestDoneEarlyPassesAsync) {
   ASSERT_TRUE(RunJavascriptAsyncTest("testDone"));
 }
 
 // Test that calling testDone during RunJavascriptTest still completes when
 // waiting for async result.
 IN_PROC_BROWSER_TEST_F(WebUIBrowserAsyncTest, TestTestDoneEarlyPasses) {
   ASSERT_TRUE(RunJavascriptTest("testDone"));
 }