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..667e4a476bcde2b337779c56acf7a313789e64a4 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_unittests") {

[miu, 2016/10/22 00:16:48]

Please see the initial plan in https://crbug.com/656112.

I think xhwang's idea was to name this source_set "media_remoting_tests" and
then have it included in *two* separate test binaries: media_unittests and
media_remoting_unittests. The latter would only be used to build/run on our
local desktops when we just want to test media remoting stuff.

So, I think all you need to do is rename this source set to
"media_remoting_tests" and create another test target in this file:

  test("media_remoting_unittests") {
    deps = [ ":media_remoting_tests",
             "//media/test:run_all_unittests", ]
  }

[xjz, 2016/10/22 00:47:43]

Done.

+  testonly = true
   sources = [
     "remoting_controller_unittest.cc",
     "rpc/proto_utils_unittest.cc",
@@ -56,7 +57,6 @@ 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",