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

skia/BUILD.gn

Index: skia/BUILD.gn
diff --git a/skia/BUILD.gn b/skia/BUILD.gn
index eb54593088922dd0c1adc673afad52f3fe8e23e6..3ac650c2f2ea570dc562682c2bf1461f2220727a 100644
--- a/skia/BUILD.gn
+++ b/skia/BUILD.gn
@@ -4,12 +4,10 @@
 
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
+import("//testing/rules.gni")
 if (cpu_arch == "arm") {
   import("//build/config/arm.gni")
 }
-if (is_android) {
-  import("//build/config/android/rules.gni")
-}
 
 skia_support_gpu = !is_ios
 skia_support_pdf = !is_ios && (enable_basic_printing || enable_print_preview)
@@ -746,13 +744,3 @@ test("skia_unittests") {
     "//ui/gfx/geometry",
   ]
 }
-
-if (is_android) {
-  # GYP: //skia/skia_tests.gyp:skia_unittests_apk
-  unittest_apk("skia_unittests_apk") {
-    unittests_dep = ":skia_unittests"
-    deps = [
-      ":skia_unittests",
-    ]
-  }
-}