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

chrome/test/webdriver/commands/window_commands.h

Index: chrome/test/webdriver/commands/window_commands.h
diff --git a/chrome/test/webdriver/commands/window_commands.h b/chrome/test/webdriver/commands/window_commands.h
index b8390095ba942afac58d142e071ffa9252471524..0c00a2f3f2cc2f8d321cce401e48ef5ab88d9b10 100644
--- a/chrome/test/webdriver/commands/window_commands.h
+++ b/chrome/test/webdriver/commands/window_commands.h
@@ -21,7 +21,7 @@ class Response;
 class WindowSizeCommand : public WebDriverCommand {
  public:
   WindowSizeCommand(const std::vector<std::string>& path_segments,
-                    const base::DictionaryValue* parameters);
+                    base::DictionaryValue* parameters);
   virtual ~WindowSizeCommand();
 
   virtual bool DoesGet() OVERRIDE;
@@ -36,7 +36,7 @@ class WindowSizeCommand : public WebDriverCommand {
 class WindowPositionCommand : public WebDriverCommand {
  public:
   WindowPositionCommand(const std::vector<std::string>& path_segments,
-                        const base::DictionaryValue* parameters);
+                        base::DictionaryValue* parameters);
   virtual ~WindowPositionCommand();
 
   virtual bool DoesGet() OVERRIDE;
@@ -51,7 +51,7 @@ class WindowPositionCommand : public WebDriverCommand {
 class WindowMaximizeCommand : public WebDriverCommand {
  public:
   WindowMaximizeCommand(const std::vector<std::string>& path_segments,
-                        const base::DictionaryValue* parameters);
+                        base::DictionaryValue* parameters);
   virtual ~WindowMaximizeCommand();
 
   virtual bool DoesPost() OVERRIDE;