Revert "codec_kit: Remove Perform"

This reverts commit a9ccd74af7.

headers/os/codec/DecoderPlugin.h

@@ -48,6 +48,8 @@ public:
 
 			void				SetChunkProvider(ChunkProvider* provider);
 
+	virtual status_t			Perform(perform_code code, void* data);
+
 private:
 			ChunkProvider*		fChunkProvider;
 

headers/os/codec/EncoderPlugin.h

@@ -80,6 +80,8 @@ public:
 
 			void				SetChunkWriter(ChunkWriter* writer);
 
+	virtual status_t			Perform(perform_code code, void* data);
+
 private:
 			ChunkWriter*		fChunkWriter;
 

headers/os/codec/ReaderPlugin.h

@@ -52,6 +52,8 @@ public:
 
 			BDataIO*			Source() const;
 
+	virtual status_t			Perform(perform_code code, void* data);
+
 private:
 			void				_Setup(BDataIO* source);
 

headers/os/codec/WriterPlugin.h

@@ -39,6 +39,8 @@ public:
 
 			BDataIO*			Target() const;
 
+	virtual status_t			Perform(perform_code code, void* data);
+
 private:
 			void				_Setup(BDataIO* target);
 

src/kits/codec/DecoderPlugin.cpp

@@ -42,6 +42,13 @@ Decoder::SetChunkProvider(ChunkProvider *provider)
 }
 
 
+status_t
+Decoder::Perform(perform_code code, void* _data)
+{
+	return B_OK;
+}
+
+
 void Decoder::_ReservedDecoder1() {}
 void Decoder::_ReservedDecoder2() {}
 void Decoder::_ReservedDecoder3() {}

src/kits/codec/EncoderPlugin.cpp

@@ -101,6 +101,13 @@ Encoder::SetChunkWriter(ChunkWriter* writer)
 // #pragma mark - FBC padding
 
 
+status_t
+Encoder::Perform(perform_code code, void* data)
+{
+	return B_OK;
+}
+
+
 void Encoder::_ReservedEncoder1() {}
 void Encoder::_ReservedEncoder2() {}
 void Encoder::_ReservedEncoder3() {}

src/kits/codec/ReaderPlugin.cpp

@@ -67,6 +67,13 @@ Reader::_Setup(BDataIO *source)
 }
 
 
+status_t
+Reader::Perform(perform_code code, void* _data)
+{
+	return B_OK;
+}
+
+
 void Reader::_ReservedReader1() {}
 void Reader::_ReservedReader2() {}
 void Reader::_ReservedReader3() {}

src/kits/codec/WriterPlugin.cpp

@@ -37,6 +37,13 @@ Writer::_Setup(BDataIO* target)
 }
 
 
+status_t
+Writer::Perform(perform_code code, void* data)
+{
+	return B_OK;
+}
+
+
 void Writer::_ReservedWriter1() {}
 void Writer::_ReservedWriter2() {}
 void Writer::_ReservedWriter3() {}