Originally observed in issue 870481 and issue 863361.

Steps to repro:

1. compile and install system_webview_shell_apk
2. adb shell am start \
    -n "org.chromium.webview_shell/.WebViewBrowserActivity" \
    -d "https://edition.cnn.com/2018/07/12/world/neutrino-blazar-cosmic-ray-discovery/index.html"
3. Click play
4. Observe crash (this doesn't repro 100%, so you might need to try a few times).

^ I get a fairly consistent repro with 69.0.3497.24 and above. I can't repro on M68 right now, although I thought I did so previously.

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The strictmode exception looks like:

E StrictMode: A resource was acquired at attached stack trace but never released. See java.io.Closeable for information on avoiding resource leaks.
E StrictMode: java.lang.Throwable: Explicit termination method 'release' not called
E StrictMode:    at dalvik.system.CloseGuard.open(CloseGuard.java:180)
E StrictMode:    at android.view.Surface.setNativeObjectLocked(Surface.java:511)
E StrictMode:    at android.view.Surface.<init>(Surface.java:179)
W System.err: StrictMode VmPolicy violation with POLICY_DEATH; shutting down.
I Process : Sending signal. PID: 32311 SIG: 9
W AudioFlinger::EffectModule: EffectModule 0xe776a780 destructor called with unreleased interface
D GraphicsStats: Buffer count: 5
W AudioFlinger::EffectModule: EffectModule 0xe776bc80 destructor called with unreleased interface
I WindowManager: WIN DEATH: Window{661f734 u0 org.chromium.webview_shell/org.chromium.webview_shell.WebViewBrowserActivity}
D ConnectivityService: ConnectivityService NetworkRequestInfo binderDied(NetworkRequest [ LISTEN id=1259, [ Capabilities: INTERNET&NOT_RESTRICTED&TRUSTED&FOREGROUND] ], android.os.BinderProxy@90ab9ef)
D ConnectivityService: ConnectivityService NetworkRequestInfo binderDied(NetworkRequest [ LISTEN id=1258, [ Capabilities: INTERNET&NOT_RESTRICTED&TRUSTED&FOREGROUND] ], android.os.BinderProxy@c122cfc)
I ActivityManager: Process org.chromium.webview_shell (pid 32311) has died
D ActivityManager: cleanUpApplicationRecord -- 32311
E ConnectivityService: RemoteException caught trying to send a callback msg for NetworkRequest [ LISTEN id=1259, [ Capabilities: INTERNET&NOT_RESTRICTED&TRUSTED&FOREGROUND] ]

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Paul introduced strictmode in the WebView shell (56a6262f1826f71e8426642a498bc0bca92cebbb), so you can only reproduce this with a recent version of the shell.