Route selection bounds updates through the compositor

cc/output/viewport_selection_bound.h

Index: cc/output/viewport_selection_bound.h
diff --git a/cc/output/viewport_selection_bound.h b/cc/output/viewport_selection_bound.h
new file mode 100644
index 0000000000000000000000000000000000000000..bb4ed12c02b48816735998a6366898e9355022bc
--- /dev/null
+++ b/cc/output/viewport_selection_bound.h
@@ -0,0 +1,31 @@
+// 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_OUTPUT_VIEWPORT_SELECTION_BOUND_H_
+#define CC_OUTPUT_VIEWPORT_SELECTION_BOUND_H_
+
+#include "cc/base/cc_export.h"
+#include "cc/input/selection_bound_type.h"
+#include "ui/gfx/geometry/rect_f.h"
+
+namespace cc {
+
+// Marker for a selection end-point in (DIP) viewport coordinates.
+struct CC_EXPORT ViewportSelectionBound {
+  ViewportSelectionBound();
+  ~ViewportSelectionBound();
+
+  SelectionBoundType type;
+  gfx::RectF viewport_rect;
+  bool visible;
+};
+
+CC_EXPORT bool operator==(const ViewportSelectionBound& lhs,
+                          const ViewportSelectionBound& rhs);
+CC_EXPORT bool operator!=(const ViewportSelectionBound& lhs,
+                          const ViewportSelectionBound& rhs);
+
+}  // namespace cc
+
+#endif  // CC_OUTPUT_VIEWPORT_SELECTION_BOUND_H_