Add yet more GN isolates ...

media/BUILD.gn

Index: media/BUILD.gn
diff --git a/media/BUILD.gn b/media/BUILD.gn
index 98250f23af64257da02e40fe78917d1fb6650f02..744dab9cd88b10e6292a40b935094df2bd18c916 100644
--- a/media/BUILD.gn
+++ b/media/BUILD.gn
@@ -524,6 +524,15 @@ if (is_ios) {
   }
 }
 
+# TODO(GYP): Delete this after we've converted everything to GN.
+# The _run targets exist only for compatibility w/ GYP.
+group("media_unittests_run") {
+  testonly = true
+  deps = [
+    ":media_unittests",
+  ]
+}
+
 test("media_unittests") {
   sources = [
     "blink/skcanvas_video_renderer_unittest.cc",
@@ -576,6 +585,10 @@ test("media_unittests") {
     "video/h264_poc_unittest.cc",
   ]
 
+  data = [
+    "test/data/",
+  ]
+
   # TODO(wolenetz): Fix size_t to int trunctaion in win64.
   # See http://crbug.com/171009
   configs += [ "//build/config/compiler:no_size_t_to_int_warning" ]