Revert of Add OBB mounter Mojo interface

components/arc/arc_bridge_service.cc

Index: components/arc/arc_bridge_service.cc
diff --git a/components/arc/arc_bridge_service.cc b/components/arc/arc_bridge_service.cc
index 40a8573274ea552a52876863010ae489346db545..48145c885adb7e86b5a11326dab6200f022181cb 100644
--- a/components/arc/arc_bridge_service.cc
+++ b/components/arc/arc_bridge_service.cc
@@ -78,8 +78,6 @@
     observer->OnNetInstanceReady();
   if (notifications_instance())
     observer->OnNotificationsInstanceReady();
-  if (obb_mounter_instance())
-    observer->OnObbMounterInstanceReady();
   if (policy_instance())
     observer->OnPolicyInstanceReady();
   if (power_instance())
@@ -372,32 +370,6 @@
 
   notifications_ptr_.reset();
   FOR_EACH_OBSERVER(Observer, observer_list(), OnNotificationsInstanceClosed());
-}
-
-void ArcBridgeService::OnObbMounterInstanceReady(
-    mojom::ObbMounterInstancePtr obb_mounter_ptr) {
-  DCHECK(CalledOnValidThread());
-  temporary_obb_mounter_ptr_ = std::move(obb_mounter_ptr);
-  temporary_obb_mounter_ptr_.QueryVersion(base::Bind(
-      &ArcBridgeService::OnObbMounterVersionReady,
-      weak_factory_.GetWeakPtr()));
-}
-
-void ArcBridgeService::OnObbMounterVersionReady(int32_t version) {
-  DCHECK(CalledOnValidThread());
-  obb_mounter_ptr_ = std::move(temporary_obb_mounter_ptr_);
-  obb_mounter_ptr_.set_connection_error_handler(base::Bind(
-      &ArcBridgeService::CloseObbMounterChannel,
-      weak_factory_.GetWeakPtr()));
-  FOR_EACH_OBSERVER(Observer, observer_list(), OnObbMounterInstanceReady());
-}
-
-void ArcBridgeService::CloseObbMounterChannel() {
-  if (!obb_mounter_ptr_)
-    return;
-
-  obb_mounter_ptr_.reset();
-  FOR_EACH_OBSERVER(Observer, observer_list(), OnObbMounterInstanceClosed());
 }
 
 void ArcBridgeService::OnPolicyInstanceReady(
@@ -587,7 +559,6 @@
   CloseMetricsChannel();
   CloseNetChannel();
   CloseNotificationsChannel();
-  CloseObbMounterChannel();
   ClosePolicyChannel();
   ClosePowerChannel();
   CloseProcessChannel();