Add GetEolStatus to VersionUpdater

Add VersionUpdater member GetEolStatus to check if device is in end-of-life state.

Bug: 1005151
Change-Id: I23655afa42dfff744bc93b90fcd59a140d7d695d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1807229Reviewed-by: Denis Kuznetsov <antrim@chromium.org>
Reviewed-by: Ivan Šandrk <isandrk@chromium.org>
Commit-Queue: Petr Smirnov <petrsmirnov@google.com>
Cr-Commit-Position: refs/heads/master@{#699691}

chrome/browser/chromeos/login/version_updater/version_updater.cc

@@ -6,6 +6,7 @@
 
 #include <algorithm>
 #include <string>
+#include <utility>
 
 #include "base/bind.h"
 #include "base/time/default_tick_clock.h"
@@ -116,6 +117,20 @@ void VersionUpdater::StartExitUpdate(Result result) {
   delegate_->FinishExitUpdate(result);
 }
 
+void VersionUpdater::GetEolStatus(EolStatusCallback callback) {
+  // Request the End of Life (Auto Update Expiration) status. Bind to a weak_ptr
+  // bound method rather than passing |callback| directly so that |callback|
+  // does not outlive |this|.
+  DBusThreadManager::Get()->GetUpdateEngineClient()->GetEolStatus(
+      base::BindOnce(&VersionUpdater::OnGetEolStatus,
+                     weak_ptr_factory_.GetWeakPtr(), std::move(callback)));
+}
+
+void VersionUpdater::OnGetEolStatus(EolStatusCallback callback,
+                                    update_engine::EndOfLifeStatus status) {
+  std::move(callback).Run(status);
+}
+
 base::OneShotTimer* VersionUpdater::GetRebootTimerForTesting() {
   return &reboot_timer_;
 }

chrome/browser/chromeos/login/version_updater/version_updater.h

@@ -95,6 +95,10 @@ class VersionUpdater : public UpdateEngineClient::Observer,
     virtual void DelayErrorMessage() = 0;
   };
 
+  // Callback type for |GetEolStatus|.
+  using EolStatusCallback =
+      base::OnceCallback<void(update_engine::EndOfLifeStatus status)>;
+
   explicit VersionUpdater(VersionUpdater::Delegate* delegate);
   ~VersionUpdater() override;
 
@@ -109,6 +113,9 @@ class VersionUpdater : public UpdateEngineClient::Observer,
 
   const UpdateInfo& update_info() { return update_info_; }
 
+  // Has the device already reached its End of Life (Auto Update Expiration)?
+  void GetEolStatus(EolStatusCallback callback);
+
   void set_tick_clock_for_testing(const base::TickClock* tick_clock) {
     tick_clock_ = tick_clock;
   }
@@ -117,6 +124,10 @@ class VersionUpdater : public UpdateEngineClient::Observer,
   void UpdateStatusChangedForTesting(const update_engine::StatusResult& status);
 
  private:
+  // Callback from UpdateEngineClient::GetEolStatus().
+  void OnGetEolStatus(EolStatusCallback callback,
+                      update_engine::EndOfLifeStatus status);
+
   void RequestUpdateCheck();
 
   // UpdateEngineClient::Observer implementation: