WIP Hittest Component.

components/viz/base/switches.cc

+// Copyright (c) 2017 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.
+
+#include "components/viz/base/switches.h"

[rjkroege, 2017/06/12 18:13:00]

I don't like where we've put this.  I think that it needs to be
components/viz/service/hit_test/base

[gklassen, 2017/06/13 18:54:23]

I will plan to leave it where it is based on our conversation with Fady, but I
will be happy to move later. 

+
+#include "base/command_line.h"
+
+namespace viz {
+namespace switches {
+
+// Use Viz HitTest Component for Event Targetting
+const char kUseVizHitTest[] = "use-viz-hit-test";
+
+}  // namespace switches
+}  // namespace viz