WIP Hittest Component.

components/viz/base/switches.h

Index: components/viz/base/switches.h
diff --git a/components/viz/base/switches.h b/components/viz/base/switches.h
new file mode 100644
index 0000000000000000000000000000000000000000..ed0cea68b7fff6cf9577c6b92dedeab48fad3484
--- /dev/null
+++ b/components/viz/base/switches.h
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+// 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.
+
+// Defines all the "viz" command-line switches.
+
+#ifndef VIZ_BASE_SWITCHES_H_
+#define VIZ_BASE_SWITCHES_H_
+
+#include "components/viz/base/base_export.h"
+
+namespace viz {
+namespace switches {
+
+VIZ_BASE_EXPORT extern const char kUseVizHitTest[];
+
+}  // namespace switches
+}  // namespace viz
+
+#endif  // VIZ_BASE_SWITCHES_H_