Route selection bounds updates through the compositor

cc/input/selection_bound_type.h

Index: cc/input/selection_bound_type.h
diff --git a/cc/input/selection_bound_type.h b/cc/input/selection_bound_type.h
new file mode 100644
index 0000000000000000000000000000000000000000..4c2eb0880a4bac0649295a712b75bf84a93622aa
--- /dev/null
+++ b/cc/input/selection_bound_type.h
@@ -0,0 +1,20 @@
+// Copyright (c) 2013 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 CC_INPUT_SELECTION_BOUND_TYPE_H_
+#define CC_INPUT_SELECTION_BOUND_TYPE_H_
+
+namespace cc {
+
+enum SelectionBoundType {
+  SELECTION_BOUND_LEFT,
+  SELECTION_BOUND_RIGHT,
+  SELECTION_BOUND_CENTER,
+  SELECTION_BOUND_EMPTY,
+  SELECTION_BOUND_TYPE_LAST = SELECTION_BOUND_EMPTY
+};
+
+}  // namespace cc
+
+#endif  // CC_INPUT_SELECTION_BOUND_TYPE_H_