Add media router common classes and unittests.

chrome/browser/BUILD.gn

 # Copyright 2014 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/config/crypto.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 
 # //build/config/android/rules.gni imports //tools/grit/grit_rule.gni, which
 # produces a conflict for the "grit" template so we have to only include one.
@@ skipping 385 matching lines @@
 
   if (enable_plugins) {
     sources +=
         rebase_path(gypi_values.chrome_browser_plugins_sources, ".", "//chrome")
     deps += [
       "//components/pdf/browser",
       "//ppapi/proxy:ipc",
       "//third_party/adobe/flash:flapper_version_h",
     ]
   }
+
+  if (enable_media_router) {
+    deps += [ "//chrome/browser/media/router:media_router" ]
+  }
+
   if (safe_browsing_mode != 0) {
     sources +=
         rebase_path(gypi_values.chrome_browser_safe_browsing_basic_sources,
                     ".",
                     "//chrome")
     deps += [
       "//chrome/browser/safe_browsing:chunk_proto",
       "//chrome/browser/safe_browsing:metadata_proto",
       "//chrome/browser/safe_browsing:report_proto",
     ]
@@ skipping 683 matching lines @@
     ]
   }
 
   if (enable_wifi_bootstrapping) {
     sources += [
       "local_discovery/wifi/mock_wifi_manager.cc",
       "local_discovery/wifi/mock_wifi_manager.h",
     ]
   }
 }