Remove remaining ICodec_* abstract classes

They are only implemented in one way, and the layering does not
required an interface here.

Change-Id: Id87591ca237fb66dbfc5aa62b4cc11c2464f5ffa
Reviewed-on: https://pdfium-review.googlesource.com/4496
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>

1 files changed, 24 insertions, 6 deletions

diff --git a/core/fxcodec/codec/ccodec_pngmodule.h b/core/fxcodec/codec/ccodec_pngmodule.h
index 0ca33f03c6..f0a08db66c 100644
--- a/core/fxcodec/codec/ccodec_pngmodule.h
+++ b/core/fxcodec/codec/ccodec_pngmodule.h
@@ -7,24 +7,42 @@
 #ifndef CORE_FXCODEC_CODEC_CCODEC_PNGMODULE_H_
 #define CORE_FXCODEC_CODEC_CCODEC_PNGMODULE_H_
 
-#include "core/fxcodec/codec/icodec_pngmodule.h"
 #include "core/fxcrt/fx_system.h"
 
+class CFX_DIBAttribute;
+struct FXPNG_Context;
+
 #define PNG_ERROR_SIZE 256
 
-class CCodec_PngModule : public ICodec_PngModule {
+class CCodec_PngModule {
  public:
+  class Delegate {
+   public:
+    virtual bool PngReadHeader(int width,
+                               int height,
+                               int bpc,
+                               int pass,
+                               int* color_type,
+                               double* gamma) = 0;
+    virtual bool PngAskScanlineBuf(int line, uint8_t*& src_buf) = 0;
+    virtual void PngFillScanlineBufCompleted(int pass, int line) = 0;
+  };
+
   CCodec_PngModule();
-  ~CCodec_PngModule() override;
+  ~CCodec_PngModule();
 
-  FXPNG_Context* Start() override;
-  void Finish(FXPNG_Context* pContext) override;
+  FXPNG_Context* Start();
+  void Finish(FXPNG_Context* pContext);
   bool Input(FXPNG_Context* pContext,
              const uint8_t* src_buf,
              uint32_t src_size,
-             CFX_DIBAttribute* pAttribute) override;
+             CFX_DIBAttribute* pAttribute);
+
+  Delegate* GetDelegate() const { return m_pDelegate; }
+  void SetDelegate(Delegate* delegate) { m_pDelegate = delegate; }
 
  protected:
+  Delegate* m_pDelegate;
   char m_szLastError[PNG_ERROR_SIZE];
 };