Handle volume benchmark timeout

If a volume benchmark operation times out, we don't want to show
a cryptic toast message. Instead, we return a very large integer
[eg Long.MAX_INT]. The storage wizard can then use this value
to show an appropriate dialog if it chooses.

Bug: 21376364
Change-Id: I3d97336e19c93511cfff2cbdb2f07ab033a1143d

services/core/java/com/android/server/NativeDaemonConnector.java

@@ -421,7 +421,7 @@ final class NativeDaemonConnector implements Runnable, Handler.Callback, Watchdo
             event = mResponseQueue.remove(sequenceNumber, timeout, logCmd);
             if (event == null) {
                 loge("timed-out waiting for response to " + logCmd);
-                throw new NativeDaemonFailureException(logCmd, event);
+                throw new NativeDaemonTimeoutException(logCmd, event);
             }
             if (VDBG) log("RMV <- {" + event + "}");
             events.add(event);

services/core/java/com/android/server/NativeDaemonTimeoutException.java

@@ -0,0 +1,28 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.server;
+
+/**
+ * An exception that indicates there was a timeout with a
+ * {@link NativeDaemonConnector} operation.
+ */
+public class NativeDaemonTimeoutException extends NativeDaemonConnectorException {
+    public NativeDaemonTimeoutException(String command, NativeDaemonEvent event) {
+        super(command, event);
+    }
+}
+