[Chromecast] Correct libcast_governor behavior.

chromecast/media/cma/backend/alsa/BUILD.gn

 # Copyright 2015 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import("//build/buildflag_header.gni")
 import("//build/config/chromecast_build.gni")
 import("//chromecast/chromecast.gni")
 import("//media/media_options.gni")
 import("//testing/test.gni")
 
@@ skipping 116 matching lines @@
     ":alsa_cma_backend",
   ]
 
   deps = [
     "//base",
     "//media",
     "//testing/gmock",
   ]
 }
 
+test("slew_volume_unittests") {
+  sources = [
+    "slew_volume_unittests.cc",
+  ]
+  deps = [
+    ":slew_volume",
+    "//base",
+    "//base/test:run_all_unittests",
+    "//media",
+    "//testing/gtest",
+  ]
+}
+
 shared_library("libcast_governor_1.0") {
+  deps = [
+    ":governor",
+  ]
+}
+
+test("libcast_governor_unittests") {
   sources = [
-    "post_processors/governor_shlib.cc",
+    "post_processors/governor_unittest.cc",
   ]
+  deps = [
+    ":governor",
+    "//base",
+    "//base/test:run_all_unittests",
+    "//media",
+    "//testing/gtest",
+  ]
+}
 
+source_set("governor") {
+  sources = [
+    "post_processors/governor.cc",
+    "post_processors/governor.h",
+  ]
   deps = [
     ":slew_volume",
     "//base",
     "//chromecast/base",
     "//chromecast/public/media",
   ]
+  public_configs = [ "//chromecast/public:public_config" ]
 }