arc: Add cryptohome_id to EmitArcBooted.

chrome/browser/chromeos/arc/boot_phase_monitor/arc_boot_phase_monitor_bridge.h

 // 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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_ARC_BOOT_PHASE_MONITOR_ARC_BOOT_PHASE_MONITOR_BRIDGE_H_
 #define CHROME_BROWSER_CHROMEOS_ARC_BOOT_PHASE_MONITOR_ARC_BOOT_PHASE_MONITOR_BRIDGE_H_
 
 #include <memory>
 
 #include "base/macros.h"
 #include "base/threading/thread_checker.h"
 #include "components/arc/arc_service.h"
 #include "components/arc/common/boot_phase_monitor.mojom.h"
 #include "components/arc/instance_holder.h"
+#include "components/signin/core/account_id/account_id.h"
 #include "mojo/public/cpp/bindings/binding.h"
 
 namespace arc {
 
 class ArcBridgeService;
 class ArcInstanceThrottle;
 
 // Receives boot phase notifications from ARC.
 class ArcBootPhaseMonitorBridge
     : public ArcService,
       public InstanceHolder<mojom::BootPhaseMonitorInstance>::Observer,
       public mojom::BootPhaseMonitorHost {
  public:
-  explicit ArcBootPhaseMonitorBridge(ArcBridgeService* bridge_service);
+  ArcBootPhaseMonitorBridge(ArcBridgeService* bridge_service,
+                            const AccountId& account_id);
   ~ArcBootPhaseMonitorBridge() override;
 
   // InstanceHolder<mojom::BootPhaseMonitorInstance>::Observer
   void OnInstanceReady() override;
   void OnInstanceClosed() override;
 
   // mojom::BootPhaseMonitorHost
   void OnBootCompleted() override;
 
  private:
+  const AccountId account_id_;
   mojo::Binding<mojom::BootPhaseMonitorHost> binding_;
   std::unique_ptr<ArcInstanceThrottle> throttle_;
 
   base::ThreadChecker thread_checker_;
 
   DISALLOW_COPY_AND_ASSIGN(ArcBootPhaseMonitorBridge);
 };
 
 }  // namespace arc
 
 #endif  // CHROME_BROWSER_CHROMEOS_ARC_BOOT_PHASE_MONITOR_ARC_BOOT_PHASE_MONITOR_BRIDGE_H_