arc: Add explicit error message in case network cannot be setup.

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 122 matching lines @@
     case ArcSupportHost::Error::SIGN_IN_GMS_NOT_AVAILABLE_ERROR:
       return os << "SIGN_IN_GMS_NOT_AVAILABLE_ERROR";
     case ArcSupportHost::Error::SIGN_IN_CLOUD_PROVISION_FLOW_FAIL_ERROR:
       return os << "SIGN_IN_CLOUD_PROVISION_FLOW_FAIL_ERROR";
     case ArcSupportHost::Error::SIGN_IN_UNKNOWN_ERROR:
       return os << "SIGN_IN_UNKNOWN_ERROR";
     case ArcSupportHost::Error::SERVER_COMMUNICATION_ERROR:
       return os << "SERVER_COMMUNICATION_ERROR";
     case ArcSupportHost::Error::ANDROID_MANAGEMENT_REQUIRED_ERROR:
       return os << "ANDROID_MANAGEMENT_REQUIRED_ERROR";
+    case ArcSupportHost::Error::NETWORK_UNAVAILABLE_ERROR:
+      return os << "NETWORK_UNAVAILABLE_ERROR";
   }
 
   // Some compiler reports an error even if all values of an enum-class are
   // covered indivisually in a switch statement.
   NOTREACHED();
   return os;
 }
 
 }  // namespace
 
@@ skipping 129 matching lines @@
       break;
     case Error::SIGN_IN_UNKNOWN_ERROR:
       message_id = IDS_ARC_SIGN_IN_UNKNOWN_ERROR;
       break;
     case Error::SERVER_COMMUNICATION_ERROR:
       message_id = IDS_ARC_SERVER_COMMUNICATION_ERROR;
       break;
     case Error::ANDROID_MANAGEMENT_REQUIRED_ERROR:
       message_id = IDS_ARC_ANDROID_MANAGEMENT_REQUIRED_ERROR;
       break;
+    case Error::NETWORK_UNAVAILABLE_ERROR:
+      message_id = IDS_ARC_NETWORK_UNAVAILABLE_ERROR;
+      break;
   }
   message.SetString(kErrorMessage, l10n_util::GetStringUTF16(message_id));
   message.SetBoolean(kShouldShowSendFeedback, should_show_send_feedback);
   message_host_->SendMessage(message);
 }
 
 void ArcSupportHost::SetMetricsPreferenceCheckbox(bool is_enabled,
                                                   bool is_managed) {
   metrics_checkbox_ = PreferenceCheckboxData(is_enabled, is_managed);
   SendPreferenceCheckboxUpdate(kActionSetMetricsMode, metrics_checkbox_);
@@ skipping 247 matching lines @@
     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();
   }
 }