arc: Stop/start ARC++ kiosk app when maintenance session started/finished.

components/arc/kiosk/arc_kiosk_bridge.h

Index: components/arc/kiosk/arc_kiosk_bridge.h
diff --git a/components/arc/kiosk/arc_kiosk_bridge.h b/components/arc/kiosk/arc_kiosk_bridge.h
index ab0323f971a9259c894a5d532093d9f0896a0a11..10b3c9d13200f4aea02d8bb3475788e806c1f23b 100644
--- a/components/arc/kiosk/arc_kiosk_bridge.h
+++ b/components/arc/kiosk/arc_kiosk_bridge.h
@@ -13,6 +13,10 @@
 #include "components/arc/instance_holder.h"
 #include "mojo/public/cpp/bindings/binding.h"
 
+namespace content {
+class BrowserContext;
+}
+
 namespace arc {
 
 class ArcBridgeService;
@@ -21,7 +25,8 @@ class ArcKioskBridge : public ArcService,
                        public InstanceHolder<mojom::KioskInstance>::Observer,
                        public mojom::KioskHost {
  public:
-  explicit ArcKioskBridge(ArcBridgeService* bridge_service);
+  explicit ArcKioskBridge(ArcBridgeService* bridge_service,
+                          content::BrowserContext* browser_context);
   ~ArcKioskBridge() override;
 
   // InstanceHolder<mojom::KioskInstance>::Observer overrides.
@@ -34,6 +39,8 @@ class ArcKioskBridge : public ArcService,
  private:
   mojo::Binding<mojom::KioskHost> binding_;
 
+  content::BrowserContext* const browser_context_;
+
   DISALLOW_COPY_AND_ASSIGN(ArcKioskBridge);
 };