Device name: Android One (507SH) Nougat 7.0
Application version: Chrome 55.0.2883.91
Operating system: Android 7.0
URLs (if applicable): None

Steps to reproduce:
<Preparation>
* Install "launchapplication-debug.apk" that launches Chrome.
* Launch some applications supporting multi-window.

<Steps>
(1) Launch Chrome.
(2) Perform a long press on the Overview button.
(3) Select the application supporting multi-window in the Overview screen.
(4) Tap Home button.
(5) Launch "LaunchApplication".
(6) Perform a long press on the Overview button, and select other application.
(7) Tap Home button.

Expected result:
(5) Web content area doesn't become black.
(7) URL bar doesn't remain.

Actual result:
(5) Web content area becomes black.(5_blackscreen.png) 
(7) URL bar still remains.(7_URLbar.png)

Note: 
We attach the screenshot, two test applications, and bugreport log.

These issues are reproduced by an application that has the following parameters in AndroidManifest.xml.
---------------------------
android:resizeableActivity="false"

android:theme="@android:style/Theme.Translucent.NoTitleBar"
---------------------------

Especially, these problems happen when an application has "@android:style/Theme.Translucent.NoTitleBar", but don't happen when not.
We attach two test applications for reproducing this issue:
* launchapplication-debug.apk
* launchapplication-debug_OK.apk

launchapplication-debug.apk has "@android:style/Theme.Translucent.NoTitleBar", and the problems happen.
launchapplication-debug_OK.apk doesn't have it, and the problems don't.

The following snippet is a part of implementation of "launchapplication-debug.apk".

---------------
* AndroidManifest.xml
    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".LaunchApplication"
                  android:theme="@android:style/Theme.Translucent.NoTitleBar"
                  android:resizeableActivity="false">
            <intent-filter>
                <action android:name="android.intent.action.MAIN"/>

                <category android:name="android.intent.category.LAUNCHER"/>
            </intent-filter>
        </activity>
    </application>


* LaunchApplication.java
public class LaunchApplication extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse("https://www.google.co.jp/"));
        startActivity(intent);
        finish();
    }
}
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