Fix HttpURLConnection CloseGuard warning due to lack of close on GZIPInputStream

java.lang.Throwable: Explicit termination method 'end' not called
       at dalvik.system.CloseGuard.open(CloseGuard.java:184)
       at java.util.zip.Inflater.<init>(Inflater.java:82)
       at java.util.zip.GZIPInputStream.<init>(GZIPInputStream.java:96)
       at java.util.zip.GZIPInputStream.<init>(GZIPInputStream.java:81)
       at libcore.net.http.HttpEngine.initContentStream(HttpEngine.java:523)
       at libcore.net.http.HttpEngine.readResponse(HttpEngine.java:831)
       at libcore.net.http.HttpURLConnectionImpl.getResponse(HttpURLConnectionImpl.java:274)
       at libcore.net.http.HttpURLConnectionImpl.getResponseCode(HttpURLConnectionImpl.java:486)
       at ...

Bug: 6602529
Change-Id: I9b49cbca561f8780d08844e566820087fdffc4d7
3 files changed