WIP Hittest Component.

cc/base/switches.cc

 // Copyright (c) 2012 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 "cc/base/switches.h"
 
 #include "base/command_line.h"
 
 namespace cc {
 namespace switches {
@@ skipping 100 matching lines @@
 const char kCCLayerTreeTestLongTimeout[] = "cc-layer-tree-test-long-timeout";
 
 // Makes pixel tests write their output instead of read it.
 const char kCCRebaselinePixeltests[] = "cc-rebaseline-pixeltests";
 
 // Disable re-use of non-exact resources to fulfill ResourcePool requests.
 // Intended only for use in layout or pixel tests to reduce noise.
 const char kDisallowNonExactResourceReuse[] =
     "disallow-non-exact-resource-reuse";
 
+// Use Viz HitTest Component for Event Targetting
+const char kUseVizHitTest[] = "use-viz-hit-test";
+
 }  // namespace switches
 }  // namespace cc