3 files changed, 14 insertions, 25 deletions
diff --git a/include/armnn/ArmNN.hpp b/include/armnn/ArmNN.hpp
index a9bb451931..f03b79d1ca 100644
--- a/include/armnn/ArmNN.hpp
+++ b/include/armnn/ArmNN.hpp
@@ -7,7 +7,6 @@
 #include "BackendId.hpp"
 #include "Descriptors.hpp"
 #include "Exceptions.hpp"
-#include "IBackend.hpp"
 #include "IRuntime.hpp"
 #include "INetwork.hpp"
 #include "LayerSupport.hpp"
diff --git a/include/armnn/IBackend.hpp b/include/armnn/IBackend.hpp
deleted file mode 100644
index 34df91c803..0000000000
--- a/include/armnn/IBackend.hpp
+++ /dev/null
@@ -1,22 +0,0 @@
-//
-// Copyright © 2017 Arm Ltd. All rights reserved.
-// SPDX-License-Identifier: MIT
-//
-#pragma once
-
-#include "BackendId.hpp"
-
-namespace armnn
-{
-
-class IBackend
-{
-protected:
-    IBackend() {}
-    virtual ~IBackend() {}
-
-public:
-    virtual const BackendId& GetId() const = 0;
-};
-
-} // namespace armnn
-\ No newline at end of file
diff --git a/include/armnn/Types.hpp b/include/armnn/Types.hpp
index 2249a365d2..cd6e17be37 100644
--- a/include/armnn/Types.hpp
+++ b/include/armnn/Types.hpp
@@ -139,6 +139,20 @@ enum class OutputShapeRounding
     Ceiling     = 1
 };
 
+/// Each backend should implement an IBackend.
+class IBackend
+{
+protected:
+    IBackend() {}
+    virtual ~IBackend() {}
+
+public:
+    virtual const BackendId& GetId() const = 0;
+};
+
+using IBackendSharedPtr = std::shared_ptr<IBackend>;
+using IBackendUniquePtr = std::unique_ptr<IBackend, void(*)(IBackend* backend)>;
+
 /// Device specific knowledge to be passed to the optimizer.
 class IDeviceSpec
 {
@@ -208,6 +222,4 @@ private:
 /// Define LayerGuid type.
 using LayerGuid = unsigned int;
 
-struct EmptyInitializer {};
-
 } // namespace armnn