Correct const accessors in base/values.(h|cc)

chrome/test/webdriver/commands/set_timeout_commands.h

 // 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.
 
 #ifndef CHROME_TEST_WEBDRIVER_COMMANDS_SET_TIMEOUT_COMMANDS_H_
 #define CHROME_TEST_WEBDRIVER_COMMANDS_SET_TIMEOUT_COMMANDS_H_
 
 #include <string>
 #include <vector>
 
 #include "chrome/test/webdriver/commands/webdriver_command.h"
 
 namespace base {
 class DictionaryValue;
 }
 
 namespace webdriver {
 
 class Response;
 
 class SetTimeoutCommand : public WebDriverCommand {
  public:
   SetTimeoutCommand(const std::vector<std::string>& path_segments,
-                    const base::DictionaryValue* const parameters);
+                    base::DictionaryValue* const parameters);
   virtual ~SetTimeoutCommand();
 
   virtual bool DoesPost() OVERRIDE;
   virtual void ExecutePost(Response* const response) OVERRIDE;
   virtual void SetTimeout(int timeout_ms) = 0;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(SetTimeoutCommand);
 };
 
 // Set timeout for asynchronous script execution (/session/*/execute_async).
 class SetAsyncScriptTimeoutCommand : public SetTimeoutCommand {
  public:
   SetAsyncScriptTimeoutCommand(const std::vector<std::string>& path_segments,
-                               const base::DictionaryValue* const parameters);
+                               base::DictionaryValue* const parameters);
   virtual ~SetAsyncScriptTimeoutCommand();
   virtual void SetTimeout(int timeout_ms) OVERRIDE;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(SetAsyncScriptTimeoutCommand);
 };
 
 // Set the amount of time the driver should wait when searching for elements.
 class ImplicitWaitCommand : public SetTimeoutCommand {
  public:
   ImplicitWaitCommand(const std::vector<std::string>& path_segments,
-                      const base::DictionaryValue* const parameters);
+                      base::DictionaryValue* const parameters);
   virtual ~ImplicitWaitCommand();
   virtual void SetTimeout(int timeout_ms) OVERRIDE;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(ImplicitWaitCommand);
 };
 
 }  // namespace webdriver
 
 #endif  // CHROME_TEST_WEBDRIVER_COMMANDS_SET_TIMEOUT_COMMANDS_H_