Add new Cronet exception class for QUIC errors

components/cronet/android/api/src/org/chromium/net/QuicException.java

+// Copyright 2016 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.
+
+package org.chromium.net;
+
+/**
+ * Subclass of {@link UrlRequestException} which contains a detailed
+ * <a href="https://www.chromium.org/quic">QUIC</a> error code from <a
+ * href=https://cs.chromium.org/chromium/src/net/quic/quic_protocol.h?type=cs&q=%22enum+QuicErrorCode+%7B%22+file:src/net/quic/quic_protocol.h>
+ * QuicErrorCode</a>. An instance of {@code QuicException} is passed to {@code onFailed} callbacks
+ * when the error code is {@link UrlRequestException#ERROR_QUIC_PROTOCOL_FAILED
+ * UrlRequestException.ERROR_QUIC_PROTOCOL_FAILED}.
+ */
+public class QuicException extends CronetException {
+    private final int mQuicDetailedErrorCode;
+
+    /**
+     * Constructs an exception with a specific error.
+     *
+     * @param message explanation of failure.
+     * @param netErrorCode Error code from
+     * <a href=https://chromium.googlesource.com/chromium/src/+/master/net/base/net_error_list.h>
+     * this list</a>.
+     * @param quicDetailedErrorCode Detailed <a href="https://www.chromium.org/quic">QUIC</a> error
+     * code from <a
+     * href=https://cs.chromium.org/chromium/src/net/quic/quic_protocol.h?type=cs&q=%22enum+QuicErrorCode+%7B%22+file:src/net/quic/quic_protocol.h>
+     * QuicErrorCode</a>.
+     */
+    public QuicException(String message, int netErrorCode, int quicDetailedErrorCode) {
+        super(message, ERROR_QUIC_PROTOCOL_FAILED, netErrorCode);
+        mQuicDetailedErrorCode = quicDetailedErrorCode;
+    }
+
+    /**
+     * Returns the <a href="https://www.chromium.org/quic">QUIC</a> error code, which is a value
+     * from <a
+     * href=https://cs.chromium.org/chromium/src/net/quic/quic_protocol.h?type=cs&q=%22enum+QuicErrorCode+%7B%22+file:src/net/quic/quic_protocol.h>
+     * QuicErrorCode</a>.
+     */
+    public int getQuicDetailedErrorCode() {
+        return mQuicDetailedErrorCode;
+    }
+}