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

ui/android/run_all_unittests.cc

Index: ui/android/run_all_unittests.cc
diff --git a/ui/android/run_all_unittests.cc b/ui/android/run_all_unittests.cc
index f15eb51ea02e34032aa84db8cbdb96a07614b9ef..480d64692219a41fc1e2940a5c15786dd27d77cd 100644
--- a/ui/android/run_all_unittests.cc
+++ b/ui/android/run_all_unittests.cc
@@ -13,6 +13,7 @@
 #include "ui/android/ui_android_jni_registrar.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/base/ui_base_paths.h"
+#include "ui/display/android/jni_registrar.h"
 #include "ui/gfx/android/gfx_jni_registrar.h"
 
 namespace {
@@ -26,6 +27,7 @@ class UIAndroidTestSuite : public base::TestSuite {
     base::TestSuite::Initialize();
 
     gfx::android::RegisterJni(base::android::AttachCurrentThread());
+    display::RegisterJni(base::android::AttachCurrentThread());
     ui::RegisterUIAndroidJni(base::android::AttachCurrentThread());
 
     ui::RegisterPathProvider();