Upstream SpanApplier.java and SpanApplierTest.java

ui/android/BUILD.gn

 import("//build/config/android/rules.gni")
 
 assert(is_android)
 
 java_cpp_enum("java_enums_srcjar") {
   sources = [
     "../base/page_transition_types.h",
     "../base/window_open_disposition.h",
     "../base/android/system_ui_resource_type.h",
     "../gfx/android/java_bitmap.h",
@@ skipping 69 matching lines @@
 android_library("ui_java") {
   DEPRECATED_java_in_dir = "java/src"
   deps = [
     ":ui_java_resources",
     "//base:base_java",
   ]
   srcjar_deps = [
     ":java_enums_srcjar",
   ]
 }
+
+android_library("ui_javatests") {
+  DEPRECATED_java_in_dir = "javatests/src"
+  testonly = true
+  deps = [
+    ":ui_java_resources",
+    ":ui_java",
+    "//base:base_java",
+    "//base:base_java_test_support",
+  ]
+}