Make the virtual keyboard show up on the display with input focus.

ui/display/test/display_manager_test_api.h

Index: ui/display/test/display_manager_test_api.h
diff --git a/ui/display/test/display_manager_test_api.h b/ui/display/test/display_manager_test_api.h
index e774ad9b4f529b051f8cbd144710e5ca075f7d0e..95fe502ec51e93b8d101c09d204015c2bee15ff5 100644
--- a/ui/display/test/display_manager_test_api.h
+++ b/ui/display/test/display_manager_test_api.h
@@ -12,6 +12,7 @@
 #include <vector>
 
 #include "base/macros.h"
+#include "ui/display/display.h"
 #include "ui/display/display_export.h"
 #include "ui/display/manager/display_layout.h"
 #include "ui/display/types/display_constants.h"
@@ -56,6 +57,10 @@ class DISPLAY_EXPORT DisplayManagerTestApi {
   // display_id is not an internal display.
   bool SetDisplayUIScale(int64_t display_id, float scale);
 
+  // Sets the touch support for |display_id|.
+  void SetTouchSupport(int64_t display_id,
+                       display::Display::TouchSupport touch_support);
+
  private:
   friend class ScopedSetInternalDisplayId;
   // Sets the display id for internal display and