Chromecast: initial checkin of Android-based cast shell.

chromecast/android/chromecast_config_android.cc

+// 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.
+
+#include "chromecast/android/chromecast_config_android.h"
+
+#include "base/logging.h"
+
+namespace chromecast {
+namespace android {
+
+namespace {
+ChromecastConfigAndroid* g_instance = NULL;

[Yaron, 2014/08/20 18:11:01]

Why not use LazyInstance?

[gunsch, 2014/08/21 22:31:27]

Done.

+}  // namespace
+
+// static
+ChromecastConfigAndroid* ChromecastConfigAndroid::GetInstance() {
+  // Note: ChromecastConfigAndroid is expected to be thread-safe, and this is
+  // potentially called across multiple threads. However, the first call is very
+  // early, when starting up breakpad (before creating browser threads), so
+  // this is expected to be safe.
+  if (!g_instance) {
+    new ChromecastConfigAndroid();
+  }
+  DCHECK(g_instance);
+  return g_instance;
+}
+
+ChromecastConfigAndroid::ChromecastConfigAndroid() {
+  DCHECK(!g_instance);
+  g_instance = this;
+}
+
+ChromecastConfigAndroid::~ChromecastConfigAndroid() {
+  DCHECK_EQ(g_instance, this);
+  g_instance = NULL;
+}
+
+// Registers a handler to be notified when SendUsageStats is changed.
+void ChromecastConfigAndroid::SetSendUsageStatsChangedCallback(
+    const base::Callback<void(bool)>& callback) {
+  send_usage_stats_changed_callback_ = callback;
+}
+
+}  // namespace android
+}  // namespace chromecast