Add support for a virtual display on ChromeOS

ui/display/chromeos/display_snapshot_virtual.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 UI_DISPLAY_TYPES_DISPLAY_SNAPSHOT_VIRTUAL_H_
+#define UI_DISPLAY_TYPES_DISPLAY_SNAPSHOT_VIRTUAL_H_
+
+#include "ui/display/types/display_snapshot.h"
+
+namespace ui {
+
+class DisplaySnapshotVirtual : public DisplaySnapshot {
+ public:
+  DisplaySnapshotVirtual(uint32_t index, DisplayMode* mode);
+  virtual ~DisplaySnapshotVirtual();

[achuithb, 2015/02/11 23:41:44]

override

+
+  // DisplaySnapshot overrides:
+  std::string ToString() const override;
+
+  DISALLOW_COPY_AND_ASSIGN(DisplaySnapshotVirtual);
+};
+
+}  // namespace ui
+
+#endif  // UI_DISPLAY_TYPES_DISPLAY_SNAPSHOT_VIRTUAL_H_