Re-enable about:flags on Android

chrome/browser/lifetime/application_lifetime_android.h

Index: chrome/browser/lifetime/application_lifetime_android.h
diff --git a/chrome/browser/lifetime/application_lifetime_android.h b/chrome/browser/lifetime/application_lifetime_android.h
new file mode 100644
index 0000000000000000000000000000000000000000..f6fa24ca577dfbd1642161b6efac032af736bc6d
--- /dev/null
+++ b/chrome/browser/lifetime/application_lifetime_android.h
@@ -0,0 +1,16 @@
+// Copyright (c) 2012 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.
+
+#ifndef CHROME_BROWSER_LIFETIME_APPLICATION_LIFETIME_ANDROID_H_
+#define CHROME_BROWSER_LIFETIME_APPLICATION_LIFETIME_ANDROID_H_
+
+#include "base/android/jni_android.h"
+
+namespace browser {
+
+bool RegisterApplicationLifetimeAndroid(JNIEnv* env);
+
+}  // namespace browser
+
+#endif  // CHROME_BROWSER_LIFETIME_APPLICATION_LIFETIME_ANDROID_H_