Merge "Add android:exported tag" into sc-dev-plus-aosp

        android:roundIcon="@mipmap/ic_launcher_round"

        android:supportsRtl="true"

        android:theme="@style/AppTheme">

        <activity android:name="com.android.media.samplevideoencoder.MainActivity">

        <activity android:name="com.android.media.samplevideoencoder.MainActivity"

            android:exported="true">

            <intent-filter>

                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />