Add support for rect-based event targeting in views

ui/views/views_switches.cc

Index: ui/views/views_switches.cc
diff --git a/ui/views/views_switches.cc b/ui/views/views_switches.cc
new file mode 100644
index 0000000000000000000000000000000000000000..819d39060cceaaa1c498de5f5c5f122605fb94d0
--- /dev/null
+++ b/ui/views/views_switches.cc
@@ -0,0 +1,24 @@
+// Copyright (c) 2013 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 "ui/views/views_switches.h"
+
+#include "base/command_line.h"
+
+namespace views {
+namespace switches {
+
+// Please keep alphabetized.
+
+// Specifies if a heuristic should be used to determine the most probable
+// target of a gesture, where the touch region is represented by a rectangle.
+const char kViewsUseRectBasedTargeting[] = "views-use-rect-based-targeting";
+
+bool UseRectBasedTargeting() {
+  return CommandLine::ForCurrentProcess()->
+      HasSwitch(kViewsUseRectBasedTargeting);
+}
+
+}  // namespace switches
+}  // namespace views