Add media remoting unittests to media_unittests.

media/remoting/BUILD.gn

Index: media/remoting/BUILD.gn
diff --git a/media/remoting/BUILD.gn b/media/remoting/BUILD.gn
index d4d87e7850c59f61f6cb62ca4476497205295cdb..0a551de46b5c1abaabb30be5a3d877959cb10026 100644
--- a/media/remoting/BUILD.gn
+++ b/media/remoting/BUILD.gn
@@ -43,7 +43,8 @@ source_set("remoting") {
   ]
 }
 
-test("media_remoting_unittests") {
+source_set("media_remoting_tests") {
+  testonly = true
   sources = [
     "remoting_controller_unittest.cc",
     "rpc/proto_utils_unittest.cc",
@@ -56,10 +57,16 @@ test("media_remoting_unittests") {
     "//base/test:test_support",
     "//media",
     "//media/mojo/interfaces:remoting",
-    "//mojo/edk/test:run_all_unittests",
     "//testing/gmock",
     "//testing/gtest",
     "//ui/gfx:test_support",
     "//ui/gfx/geometry",
   ]
 }
+
+test("media_remoting_unittests") {
+  deps = [
+    ":media_remoting_tests",
+    "//media/test:run_all_unittests",
+  ]
+}