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 792f5b8399877fb876297c18107a86473f45d036..01b214dd11851fbd25e2645f5d40b38017334498 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"
@@ -64,6 +65,10 @@ 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