Add window manager component.

wm/test/wm_unittests.cc

Index: wm/test/wm_unittests.cc
diff --git a/ui/base/touch/touch_device_android.cc b/wm/test/wm_unittests.cc
similarity index 58%
copy from ui/base/touch/touch_device_android.cc
copy to wm/test/wm_unittests.cc
index 39e34c24765363d439e175cad62cdc98ef257ed8..c3e7d056372845dbc15bcadcdcc0e4409fdb3311 100644
--- a/ui/base/touch/touch_device_android.cc
+++ b/wm/test/wm_unittests.cc
@@ -2,12 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "ui/base/touch/touch_device.h"
+#include "ash/test/test_suite.h"
 
-namespace ui {
-
-bool IsTouchDevicePresent() {
-  return true;
+int main(int argc, char** argv) {
+  return ash::test::AuraShellTestSuite(argc, argv).Run();
 }
-
-}  // namespace ui