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

ui/display/test/display_manager_test_api.cc

Index: ui/display/test/display_manager_test_api.cc
diff --git a/ui/display/test/display_manager_test_api.cc b/ui/display/test/display_manager_test_api.cc
index 5e207a4e388601d9d45c8ac149ce78aae054feb5..d86d1a2c2f517e740c6485f638e706d8794756ba 100644
--- a/ui/display/test/display_manager_test_api.cc
+++ b/ui/display/test/display_manager_test_api.cc
@@ -141,6 +141,13 @@ bool DisplayManagerTestApi::SetDisplayUIScale(int64_t id, float ui_scale) {
   return display_manager_->SetDisplayMode(id, mode);
 }
 
+void DisplayManagerTestApi::SetTouchSupport(
+    int64_t display_id,
+    display::Display::TouchSupport touch_support) {
+  display_manager_->FindDisplayForId(display_id)
+      ->set_touch_support(touch_support);
+}
+
 ScopedDisable125DSFForUIScaling::ScopedDisable125DSFForUIScaling() {
   display::ManagedDisplayInfo::SetUse125DSFForUIScalingForTest(false);
 }