arc: Restore UMA statistics for failures in LSO flow.

chrome/browser/chromeos/arc/arc_support_host.cc

 // 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.
 
 #include "chrome/browser/chromeos/arc/arc_support_host.h"
 
 #include <string>
 #include <utility>
 
 #include "ash/common/system/chromeos/devicetype_utils.h"
@@ skipping 51 matching lines @@
 constexpr char kEvent[] = "event";
 
 // "onWindowClosed" is fired when the extension window is closed.
 // No data will be provided.
 constexpr char kEventOnWindowClosed[] = "onWindowClosed";
 
 // "onAuthSucceeded" is fired when successfully done to LSO authorization in
 // extension.
 // The auth token is passed via "code" field.
 constexpr char kEventOnAuthSucceeded[] = "onAuthSucceeded";
+// "onAuthFailed" is fired when LSO authorization has failed in extension.
+constexpr char kEventOnAuthFailed[] = "onAuthFailed";
 constexpr char kCode[] = "code";
 
 // "onAgree" is fired when a user clicks "Agree" button.
 // The message should have the following three fields:
 // - isMetricsEnabled
 // - isBackupRestoreEnabled
 // - isLocationServiceEnabled
 constexpr char kEventOnAgreed[] = "onAgreed";
 constexpr char kIsMetricsEnabled[] = "isMetricsEnabled";
 constexpr char kIsBackupRestoreEnabled[] = "isBackupRestoreEnabled";
@@ skipping 435 matching lines @@
     for (auto& observer : observer_list_)
       observer.OnWindowClosed();
   } else if (event == kEventOnAuthSucceeded) {
     std::string code;
     if (message.GetString(kCode, &code)) {
       for (auto& observer : observer_list_)
         observer.OnAuthSucceeded(code);
     } else {
       NOTREACHED();
     }
+  } else if (event == kEventOnAuthFailed) {
+    for (auto& observer : observer_list_)
+      observer.OnAuthFailed();
   } else if (event == kEventOnAgreed) {
     bool is_metrics_enabled;
     bool is_backup_restore_enabled;
     bool is_location_service_enabled;
     if (message.GetBoolean(kIsMetricsEnabled, &is_metrics_enabled) &&
         message.GetBoolean(kIsBackupRestoreEnabled,
                            &is_backup_restore_enabled) &&
         message.GetBoolean(kIsLocationServiceEnabled,
                            &is_location_service_enabled)) {
       for (auto& observer : observer_list_) {
         observer.OnTermsAgreed(is_metrics_enabled, is_backup_restore_enabled,
                                is_location_service_enabled);
       }
     } else {
       NOTREACHED();
     }
   } else if (event == kEventOnRetryClicked) {
     for (auto& observer : observer_list_)
       observer.OnRetryClicked();
   } else if (event == kEventOnSendFeedbackClicked) {
     for (auto& observer : observer_list_)
       observer.OnSendFeedbackClicked();
   } else {
     LOG(ERROR) << "Unknown message: " << event;
     NOTREACHED();
   }
 }