Move the test template to //testing/test.gni (part 2)

sync/BUILD.gn

Index: sync/BUILD.gn
diff --git a/sync/BUILD.gn b/sync/BUILD.gn
index 65af3de406064b1718f4553ba868047e45f90964..a14699fac19be0937c5179ea248e3ded0b98b0a3 100644
--- a/sync/BUILD.gn
+++ b/sync/BUILD.gn
@@ -3,6 +3,7 @@
 # found in the LICENSE file.
 
 import("//build/config/features.gni")
+import("//testing/rules.gni")
 
 component("sync") {
   public_deps = [
@@ -645,13 +646,6 @@ test("sync_unit_tests") {
     ":test_support_sync_internal_api",
   ]
 
-  # TODO(GYP)
-  #   ['OS == "android"', {
-  #     'dependencies': [
-  #       '../testing/android/native_test.gyp:native_test_native_code',
-  #     ],
-  #   }],
-
   if (is_chromeos) {
     # Required by get_session_name_unittest.cc on Chrome OS.
     deps += [ "//chromeos" ]
@@ -812,12 +806,4 @@ if (is_android) {
       "//base",
     ]
   }
-
-  # GYP: //sync/sync_tests.gypi:sync_unit_tests_apk
-  unittest_apk("sync_unit_tests_apk") {
-    unittests_dep = ":sync_unit_tests"
-    deps = [
-      ":sync_unit_tests",
-    ]
-  }
 }