Opt out of download feedback from settings

chrome/browser/ui/views/download/download_feedback_dialog_view.h

 // Copyright 2014 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_BROWSER_UI_VIEWS_DOWNLOAD_DOWNLOAD_FEEDBACK_DIALOG_VIEW_H_
 #define CHROME_BROWSER_UI_VIEWS_DOWNLOAD_DOWNLOAD_FEEDBACK_DIALOG_VIEW_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "chrome/common/pref_names.h"
 #include "ui/views/window/dialog_delegate.h"
 
 namespace views {
 class MessageBoxView;
 }
 
 class Profile;
 
 // Asks the user whether s/he wants to participate in the Safe Browsing
 // download feedback program. Shown only for downloads marked DANGEROUS_HOST
 // or UNCOMMON_DOWNLOAD. The user should only see this dialog once.
 class DownloadFeedbackDialogView : public views::DialogDelegate {
  public:
-  // Possible values for prefs::kSafeBrowsingDownloadReportingEnabled pref.
-  enum DownloadReportingStatus {
-    kDialogNotYetShown,
-    kDownloadReportingDisabled,  // Set by Cancel().
-    kDownloadReportingEnabled,   // Set by Accept().
-    kMaxValue
-  };
+  // Callback with the user's decision. |accepted| is true if the user clicked
+  // Accept(). Otherwise, assume the user cancelled.
+  typedef base::Callback<void(bool accepted)> UserDecisionCallback;
 
   static void Show(
       gfx::NativeWindow parent_window,
       Profile* profile,
-      const base::Callback<void(DownloadReportingStatus)>& callback);
+      const UserDecisionCallback& callback);
 
  private:
   DownloadFeedbackDialogView(
       Profile* profile,
-      const base::Callback<void(DownloadReportingStatus)>& callback);
+      const UserDecisionCallback& callback);
   virtual ~DownloadFeedbackDialogView();
 
-  void ReleaseDialogStatusHold();
+  // Handles the user's decision.
+  bool OnButtonClicked(bool accepted);
 
   // views::DialogDelegate:
   virtual ui::ModalType GetModalType() const OVERRIDE;
   virtual base::string16 GetWindowTitle() const OVERRIDE;
   virtual void DeleteDelegate() OVERRIDE;
   virtual views::Widget* GetWidget() OVERRIDE;
   virtual const views::Widget* GetWidget() const OVERRIDE;
   virtual views::View* GetContentsView() OVERRIDE;
   virtual int GetDefaultDialogButton() const OVERRIDE;
   virtual base::string16 GetDialogButtonLabel(
       ui::DialogButton button) const OVERRIDE;
   virtual bool Cancel() OVERRIDE;
   virtual bool Accept() OVERRIDE;
 
   Profile* profile_;
-  const base::Callback<void(DownloadReportingStatus)> callback_;
+  const UserDecisionCallback callback_;
   views::MessageBoxView* explanation_box_view_;
   base::string16 title_text_;
   base::string16 ok_button_text_;
   base::string16 cancel_button_text_;
 
   DISALLOW_COPY_AND_ASSIGN(DownloadFeedbackDialogView);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_DOWNLOAD_DOWNLOAD_FEEDBACK_DIALOG_VIEW_H_