fix return value scale of notifyANR()

fix return value scale of notifyANR()
from milliseconds to nanoseconds when windowState is not null
This prevent unintended frequent method calls of notifyANR()
in a very short time.

Change-Id: Icc1f363b3ed3538821a42c080809567473bfb833
Signed-off-by: Baik Han <baik.han@lge.com>

services/core/java/com/android/server/wm/InputMonitor.java

@@ -148,7 +148,7 @@ final class InputMonitor implements InputManagerService.WindowManagerCallbacks {
                 if (timeout >= 0) {
                     // The activity manager declined to abort dispatching.
                     // Wait a bit longer and timeout again later.
-                    return timeout;
+                    return timeout * 1000000L; // nanoseconds
                 }
             } catch (RemoteException ex) {
             }