Enabled volume buttons when TouchView is active

ash/test/dummy_volume_control_delegate.cc

Index: ash/test/dummy_volume_control_delegate.cc
diff --git a/ash/test/dummy_volume_control_delegate.cc b/ash/test/dummy_volume_control_delegate.cc
new file mode 100644
index 0000000000000000000000000000000000000000..589e3cb96b97d745d1480dc27e60e502dec4d136
--- /dev/null
+++ b/ash/test/dummy_volume_control_delegate.cc
@@ -0,0 +1,40 @@
+// 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.
+
+#include "ash/test/dummy_volume_control_delegate.h"
+
+namespace ash {
+
+DummyVolumeControlDelegate::DummyVolumeControlDelegate(bool consume)
+  : consume_(consume),
+    handle_volume_mute_count_(0),
+    handle_volume_down_count_(0),
+    handle_volume_up_count_(0) {
+}
+
+DummyVolumeControlDelegate::~DummyVolumeControlDelegate() {}
+
+bool DummyVolumeControlDelegate::DummyVolumeControlDelegate::HandleVolumeMute(
+  const ui::Accelerator& accelerator) {
+  ++handle_volume_mute_count_;
+  last_accelerator_ = accelerator;
+  return consume_;
+}
+
+bool DummyVolumeControlDelegate::HandleVolumeDown(
+  const ui::Accelerator& accelerator) {
+  ++handle_volume_down_count_;
+  last_accelerator_ = accelerator;
+  return consume_;
+}
+
+bool DummyVolumeControlDelegate::HandleVolumeUp(
+  const ui::Accelerator& accelerator) {
+  ++handle_volume_up_count_;
+  last_accelerator_ = accelerator;
+  return consume_;
+}
+
+}  // namespace ash
+