Roll src/third_party/cros_system_api/ c6eab9e4d..6139ae009 + API change

services/device/public/interfaces/fingerprint.mojom

 // Copyright 2017 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.
 
 module device.mojom;
 
 // This interface is ChromeOS-specific. If it is ever desired
 // to support a more general fingerprint service across more
 // platforms, the interface would need to be generalized.
 // Interface for obeserving fingerprint daemon signals.
 interface FingerprintObserver{
   // Called when biometics device powers up or is restarted.
   OnRestarted();
 
   // Called whenever a user attempts a scan. |scan_result| tells whether the
   // scan was succesful. |is_complete| tells whether record is complete
   // and now over.
-  OnEnrollScanDone(uint32 scan_result, bool is_complete);
+  // |percent_complete| within [0, 100] represents the percent of enrollment
+  // completion and -1 means unknown percentage.
+  OnEnrollScanDone(uint32 scan_result,
+                   bool is_complete,
+                   int32 percent_complete);
 
   // Called to indicate a bad scan of any kind, or a succesful scan. If scan
   // is successful, |matches| is a map of user id keys to a vector of
   // object path values.
   OnAuthScanDone(uint32 scan_result, map<string, array<string>> matches);
 
   // Called during either mode to indicate a failure. Any EnrollSession record
-  // that was underway is thrown away and AuthSession will no longer be happening.
+  // that was underway is thrown away and AuthSession will no longer be
+  // happening.
   OnSessionFailed();
 };
 
 // Interface for communicating with fingerprint deamon through dbus.
 interface Fingerprint {
   // Gets all the records of this user registered with this biometric manager.
   // |records| is a map of record path keys to record label values.
   GetRecordsForUser(string user_id) => (map<string, string> records);
 
   // Starts the biometric enroll session.
@@ skipping 21 matching lines @@
   // Irreversibly destroys all records registered with this biometric manager.
   DestroyAllRecords() => (bool success);
 
   // Adds fingerprint observers and notifies them when receiving signals.
   AddFingerprintObserver(FingerprintObserver observer);
 
   // Requests the type of biometric.
   RequestType() => (uint32 type);
 };