Added restore functionality for maximize full/left/right

ash/wm/workspace/maximize_bubble_frame_state.h

Index: ash/wm/workspace/maximize_bubble_frame_state.h
diff --git a/ash/wm/workspace/maximize_bubble_frame_state.h b/ash/wm/workspace/maximize_bubble_frame_state.h
new file mode 100644
index 0000000000000000000000000000000000000000..80fb835d8b6a3e95f40bad15e5b4feceb5785d2f
--- /dev/null
+++ b/ash/wm/workspace/maximize_bubble_frame_state.h
@@ -0,0 +1,20 @@
+// 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_WM_WORKSPACE_MAXIMIZE_BUBBLE_FRAME_STATE_H_
+#define ASH_WM_WORKSPACE_MAXIMIZE_BUBBLE_FRAME_STATE_H_
+
+namespace ash {
+
+// These are the types of maximization we know.
+enum MaximizeBubbleFrameState {
+  FRAME_STATE_NONE = 0,
+  FRAME_STATE_FULL = 1,  // This is the full maximized state.
+  FRAME_STATE_SNAP_LEFT = 2,
+  FRAME_STATE_SNAP_RIGHT = 3
+};
+
+} // namespace views
+
+#endif  // ASH_WM_WORKSPACE_MAXIMIZE_BUBBLE_FRAME_STATE_H_