Replace cc::ViewportSelectionBound with gfx::SelectionBound

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
deleted file mode 100644
index 5e1f9c4f2b41129b89014bfd16468b88a45277d8..0000000000000000000000000000000000000000
--- a/cc/input/selection_bound_type.h
+++ /dev/null
@@ -1,20 +0,0 @@
-// 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 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_