Add OBB mounter Mojo interface

components/arc/common/arc_bridge.mojom

Index: components/arc/common/arc_bridge.mojom
diff --git a/components/arc/common/arc_bridge.mojom b/components/arc/common/arc_bridge.mojom
index fde36d26788ff5eb297dff480caa77aa1052dc6e..8a17394b15baed26e3616e91def1b3605b4aaf41 100644
--- a/components/arc/common/arc_bridge.mojom
+++ b/components/arc/common/arc_bridge.mojom
@@ -16,6 +16,7 @@ import "intent_helper.mojom";
 import "metrics.mojom";
 import "net.mojom";
 import "notifications.mojom";
+import "obb_mounter.mojom";
 import "policy.mojom";
 import "power.mojom";
 import "process.mojom";
@@ -23,9 +24,9 @@ import "storage_manager.mojom";
 import "video.mojom";
 import "window_manager.mojom";
 
-// Next MinVersion: 13
+// Next MinVersion: 15
 // Deprecated method IDs: 101, 105
-// Next method ID: 119
+// Next method ID: 121
 interface ArcBridgeHost {
   // Keep the entries alphabetical. In order to do so without breaking
   // compatibility with the ARC instance, explicitly assign each interface a
@@ -70,6 +71,9 @@ interface ArcBridgeHost {
   // Notifies Chrome that the NotificationsInstance interface is ready.
   OnNotificationsInstanceReady@102(NotificationsInstance instance_ptr);
 
+  // Notifies Chrome that the ObbMounter interface is ready.
+  [MinVersion=14] OnObbMounterInstanceReady@120(ObbMounterInstance instance_ptr);
+
   // Notifies Chrome that the PolicyInstance interface is ready.
   [MinVersion=7] OnPolicyInstanceReady@114(PolicyInstance instance_ptr);