Put chromoting isolate targets under chromoting_swarm_tests=1 GYP variable.

chrome/test/media_router/test_media_sinks_observer.cc

Index: chrome/test/media_router/test_media_sinks_observer.cc
diff --git a/chrome/test/media_router/test_media_sinks_observer.cc b/chrome/test/media_router/test_media_sinks_observer.cc
new file mode 100644
index 0000000000000000000000000000000000000000..c4a9fce51dcfaa7085133f3cc6fea7aac5737497
--- /dev/null
+++ b/chrome/test/media_router/test_media_sinks_observer.cc
@@ -0,0 +1,29 @@
+// 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.
+
+#include <string>
+#include <utility>
+
+#include "chrome/browser/media/router/media_router.h"
+#include "chrome/test/media_router/test_media_sinks_observer.h"
+
+namespace media_router {
+
+TestMediaSinksObserver::TestMediaSinksObserver(MediaRouter* router,
+                                               const MediaSource& source)
+    : MediaSinksObserver(router, source) {
+}
+
+TestMediaSinksObserver::~TestMediaSinksObserver() {
+}
+
+void TestMediaSinksObserver::OnSinksReceived(
+    const std::vector<MediaSink>& result) {
+  sink_map.clear();
+  for (const MediaSink& sink : result) {
+    sink_map.insert(std::make_pair(sink.name(), sink));
+  }
+}
+
+}  // namespace media_router