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

chrome/test/webdriver/commands/set_timeout_commands.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 "chrome/test/webdriver/commands/set_timeout_commands.h"
 
 #include <string>
 
 #include "base/stringprintf.h"
 #include "base/values.h"
 #include "chrome/test/webdriver/commands/response.h"
 #include "chrome/test/webdriver/webdriver_error.h"
 #include "chrome/test/webdriver/webdriver_session.h"
 
 namespace webdriver {
 
 SetTimeoutCommand::SetTimeoutCommand(
     const std::vector<std::string>& path_segments,
-    const DictionaryValue* const parameters) :
+    DictionaryValue* const parameters) :
   WebDriverCommand(path_segments, parameters) {}
 
 SetTimeoutCommand::~SetTimeoutCommand() {}
 
 bool SetTimeoutCommand::DoesPost() {
   return true;
 }
 
 void SetTimeoutCommand::ExecutePost(Response* const response) {
   // Timeout value in milliseconds
@@ skipping 23 matching lines @@
   if (ms_to_wait < 0) {
     response->SetError(new Error(kBadRequest, "Timeout must be non-negative"));
     return;
   }
 
   SetTimeout(ms_to_wait);
 }
 
 SetAsyncScriptTimeoutCommand::SetAsyncScriptTimeoutCommand(
     const std::vector<std::string>& path_segments,
-    const DictionaryValue* const parameters)
+    DictionaryValue* const parameters)
     : SetTimeoutCommand(path_segments, parameters) {}
 
 SetAsyncScriptTimeoutCommand::~SetAsyncScriptTimeoutCommand() {}
 
 void SetAsyncScriptTimeoutCommand::SetTimeout(int timeout_ms) {
   session_->set_async_script_timeout(timeout_ms);
 }
 
 ImplicitWaitCommand::ImplicitWaitCommand(
     const std::vector<std::string>& path_segments,
-    const DictionaryValue* const parameters)
+    DictionaryValue* const parameters)
     : SetTimeoutCommand(path_segments, parameters) {}
 
 ImplicitWaitCommand::~ImplicitWaitCommand() {}
 
 void ImplicitWaitCommand::SetTimeout(int timeout_ms) {
   session_->set_implicit_wait(timeout_ms);
 }
 
 }  // namespace webdriver