Reland of Android: support multiple displays on C++ side

ui/android/ui_android_jni_registrar.cc

Index: ui/android/ui_android_jni_registrar.cc
diff --git a/ui/android/ui_android_jni_registrar.cc b/ui/android/ui_android_jni_registrar.cc
index 8441dd2478b070d182a2b87fcb65ab783e65bd53..9039465511a7f12e2365743d778aa7245f79948c 100644
--- a/ui/android/ui_android_jni_registrar.cc
+++ b/ui/android/ui_android_jni_registrar.cc
@@ -7,6 +7,7 @@
 #include "base/android/jni_android.h"
 #include "base/android/jni_registrar.h"
 #include "base/macros.h"
+#include "ui/android/display_android.h"
 #include "ui/android/resources/resource_manager_impl.h"
 #include "ui/android/view_android.h"
 #include "ui/android/window_android.h"
@@ -14,6 +15,7 @@
 namespace ui {
 
 static base::android::RegistrationMethod kAndroidRegisteredMethods[] = {
+    {"DisplayAndroid", DisplayAndroid::RegisterDisplayAndroid},
     {"ResourceManager", ui::ResourceManagerImpl::RegisterResourceManager},
     {"WindowAndroid", WindowAndroid::RegisterWindowAndroid},
 };