[cleanup] Use Delegate method to control context menu and eliminate HtmlDialogWithoutContextMenuView

chrome/browser/chromeos/sim_dialog_delegate.h

Index: chrome/browser/chromeos/sim_dialog_delegate.h
diff --git a/chrome/browser/chromeos/sim_dialog_delegate.h b/chrome/browser/chromeos/sim_dialog_delegate.h
index fe68b20637f886b9143218b547b67d6426fb1068..510592c343c8998f12bd25e53d3965eb7b1cc1ae 100644
--- a/chrome/browser/chromeos/sim_dialog_delegate.h
+++ b/chrome/browser/chromeos/sim_dialog_delegate.h
@@ -30,16 +30,18 @@ class SimDialogDelegate : public HtmlDialogUIDelegate {
   virtual ~SimDialogDelegate();
 
   // Overridden from HtmlDialogUI::Delegate:
-  virtual bool IsDialogModal() const;
-  virtual std::wstring GetDialogTitle() const;
-  virtual GURL GetDialogContentURL() const;
+  virtual bool IsDialogModal() const OVERRIDE;
+  virtual std::wstring GetDialogTitle() const OVERRIDE;
+  virtual GURL GetDialogContentURL() const OVERRIDE;
   virtual void GetWebUIMessageHandlers(
-      std::vector<WebUIMessageHandler*>* handlers) const;
-  virtual void GetDialogSize(gfx::Size* size) const;
-  virtual std::string GetDialogArgs() const;
-  virtual void OnDialogClosed(const std::string& json_retval);
-  virtual void OnCloseContents(TabContents* source, bool* out_close_dialog);
-  virtual bool ShouldShowDialogTitle() const;
+      std::vector<WebUIMessageHandler*>* handlers) const OVERRIDE;
+  virtual void GetDialogSize(gfx::Size* size) const OVERRIDE;
+  virtual std::string GetDialogArgs() const OVERRIDE;
+  virtual void OnDialogClosed(const std::string& json_retval) OVERRIDE;
+  virtual void OnCloseContents(
+      TabContents* source, bool* out_close_dialog) OVERRIDE;
+  virtual bool ShouldShowDialogTitle() const OVERRIDE;
+  virtual bool HandleContextMenu(const ContextMenuParams& params) OVERRIDE;
 
   SimDialogMode dialog_mode_;