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-rw-r--r--chromium/ash/volume_control_delegate.h26
1 files changed, 26 insertions, 0 deletions
diff --git a/chromium/ash/volume_control_delegate.h b/chromium/ash/volume_control_delegate.h
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+++ b/chromium/ash/volume_control_delegate.h
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+// Copyright (c) 2012 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 ASH_VOLUME_CONTROL_DELEGATE_H_
+#define ASH_VOLUME_CONTROL_DELEGATE_H_
+
+namespace ui {
+class Accelerator;
+} // namespace ui
+
+namespace ash {
+
+// Delegate for controlling the volume.
+class VolumeControlDelegate {
+ public:
+ virtual ~VolumeControlDelegate() {}
+
+ virtual bool HandleVolumeMute(const ui::Accelerator& accelerator) = 0;
+ virtual bool HandleVolumeDown(const ui::Accelerator& accelerator) = 0;
+ virtual bool HandleVolumeUp(const ui::Accelerator& accelerator) = 0;
+};
+
+} // namespace ash
+
+#endif // ASH_VOLUME_CONTROL_DELEGATE_H_