Stick windows to sides of workspaces

ash/wm/workspace/stuck_edge_types.h

Index: ash/wm/workspace/stuck_edge_types.h
diff --git a/ash/wm/workspace/stuck_edge_types.h b/ash/wm/workspace/stuck_edge_types.h
new file mode 100644
index 0000000000000000000000000000000000000000..6127a7e4a2ff1129406130cffddaa4f381bd8cde
--- /dev/null
+++ b/ash/wm/workspace/stuck_edge_types.h
@@ -0,0 +1,26 @@
+// 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_STUCK_EDGE_TYPES_H_
+#define ASH_WM_WORKSPACE_STUCK_EDGE_TYPES_H_
+
+namespace ash {
+
+// Enum for bits that contain edges that a window can be stuck to.
+// Multiple edges can be combined in a bitmask
+enum StuckEdge {
+  STUCK_EDGE_NONE   = 0,
+  STUCK_EDGE_LEFT   = 1 << 0,
+  STUCK_EDGE_RIGHT  = 1 << 1,
+  STUCK_EDGE_TOP    = 1 << 2,
+  STUCK_EDGE_BOTTOM = 1 << 3,
+};
+
+const uint32 kAllStuckEdges =
+    STUCK_EDGE_LEFT | STUCK_EDGE_RIGHT | STUCK_EDGE_TOP | STUCK_EDGE_BOTTOM;
+
+}  // namespace ash
+
+#endif  // ASH_WM_WORKSPACE_STUCK_EDGE_TYPES_H_
+