Support region selection for voice interaction session

chrome/browser/ui/ash/palette_delegate_chromeos.h

 // Copyright 2015 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_ASH_PALETTE_DELEGATE_CHROMEOS_H_
 #define CHROME_BROWSER_UI_ASH_PALETTE_DELEGATE_CHROMEOS_H_
 
 #include <string>
 
 #include "ash/palette_delegate.h"
 #include "base/callback_list.h"
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "base/values.h"
 #include "components/user_manager/user_manager.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 
 class PrefChangeRegistrar;
 class Profile;
 
+namespace ash {
+class ScreenshotDelegate;
+}
+
 namespace chromeos {
 
 // A class which allows the Ash palette to perform chrome actions.
 class PaletteDelegateChromeOS
     : public ash::PaletteDelegate,
       public user_manager::UserManager::UserSessionStateObserver,
       public content::NotificationObserver {
  public:
   PaletteDelegateChromeOS();
   ~PaletteDelegateChromeOS() override;
@@ skipping 26 matching lines @@
 
   base::CallbackList<void(bool)> palette_enabled_callback_list_;
 
   // Unowned pointer to the active profile.
   Profile* profile_ = nullptr;
   std::unique_ptr<PrefChangeRegistrar> pref_change_registrar_;
   std::unique_ptr<user_manager::ScopedUserSessionStateObserver>
       session_state_observer_;
   content::NotificationRegistrar registrar_;
 
+  std::unique_ptr<ash::ScreenshotDelegate>
+      voice_interaction_screenshot_delegate_;
+
   base::WeakPtrFactory<PaletteDelegateChromeOS> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(PaletteDelegateChromeOS);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_UI_ASH_PALETTE_DELEGATE_CHROMEOS_H_