Add OBB mounter Mojo interface

components/arc/obb_mounter/arc_obb_mounter_bridge.h

Index: components/arc/obb_mounter/arc_obb_mounter_bridge.h
diff --git a/components/arc/obb_mounter/arc_obb_mounter_bridge.h b/components/arc/obb_mounter/arc_obb_mounter_bridge.h
new file mode 100644
index 0000000000000000000000000000000000000000..d23715212c605c4493e6b83261c42d3d70c92a4d
--- /dev/null
+++ b/components/arc/obb_mounter/arc_obb_mounter_bridge.h
@@ -0,0 +1,42 @@
+// 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 COMPONENTS_ARC_OBB_MOUNTER_ARC_OBB_MOUNTER_BRIDGE_H_
+#define COMPONENTS_ARC_OBB_MOUNTER_ARC_OBB_MOUNTER_BRIDGE_H_
+
+#include "base/macros.h"
+#include "components/arc/arc_bridge_service.h"
+#include "components/arc/arc_service.h"
+#include "mojo/public/cpp/bindings/binding.h"
+
+namespace arc {
+
+// This class handles OBB mount/unmount requests from Android.
+class ArcObbMounterBridge : public ArcService,
+                            public ArcBridgeService::Observer,
+                            public mojom::ObbMounterHost {
+ public:
+  explicit ArcObbMounterBridge(ArcBridgeService* bridge_service);
+  ~ArcObbMounterBridge() override;
+
+  // ArcBridgeService::Observer overrides:
+  void OnObbMounterInstanceReady() override;
+
+  // mojom::ObbMounterHost overrides:
+  void MountObb(const mojo::String& obb_file,
+                const mojo::String& target_path,
+                int32_t owner_gid,
+                const MountObbCallback& callback) override;
+  void UnmountObb(const mojo::String& target_path,
+                  const UnmountObbCallback& callback) override;
+
+ private:
+  mojo::Binding<mojom::ObbMounterHost> binding_;
+
+  DISALLOW_COPY_AND_ASSIGN(ArcObbMounterBridge);
+};
+
+}  // namespace arc
+
+#endif  // COMPONENTS_ARC_OBB_MOUNTER_ARC_OBB_MOUNTER_BRIDGE_H_