IVGCVSW-2645 Add Serializer & Deserializer for Pooling2d

Change-Id: Iba41da3cccd539a0175f2ed0ff9a8b6a23c5fb6f
Signed-off-by: Aron Virginas-Tar <Aron.Virginas-Tar@arm.com>
Signed-off-by: Saoirse Stewart <saoirse.stewart@arm.com>
diff --git a/src/armnnSerializer/Serializer.hpp b/src/armnnSerializer/Serializer.hpp
index ec26dc1..169ed09 100644
--- a/src/armnnSerializer/Serializer.hpp
+++ b/src/armnnSerializer/Serializer.hpp
@@ -60,6 +60,10 @@
                            const armnn::SoftmaxDescriptor& softmaxDescriptor,
                            const char* name = nullptr) override;
 
+    void VisitPooling2dLayer(const armnn::IConnectableLayer* layer,
+                             const armnn::Pooling2dDescriptor& pooling2dDescriptor,
+                             const char* name = nullptr) override;
+
 private:
 
     /// Creates the Input Slots and Output Slots and LayerBase for the layer.