Use smart pointers for graphics device classes

core/fpdfapi/fpdf_render/render_int.h

Index: core/fpdfapi/fpdf_render/render_int.h
diff --git a/core/fpdfapi/fpdf_render/render_int.h b/core/fpdfapi/fpdf_render/render_int.h
index edbbad53c8a7195c770a1caf61c258f9bc21b6c9..93600466c2ad647e9ae0fe2dc88314a726d40c5a 100644
--- a/core/fpdfapi/fpdf_render/render_int.h
+++ b/core/fpdfapi/fpdf_render/render_int.h
@@ -9,6 +9,7 @@
 
 #include <map>
 #include <memory>
+#include <vector>
 
 #include "core/fpdfapi/fpdf_page/cpdf_countedobject.h"
 #include "core/fpdfapi/fpdf_page/cpdf_graphicstates.h"
@@ -618,7 +619,7 @@ class CPDF_DIBTransferFunc : public CFX_FilteredDIB {
   // CFX_FilteredDIB
   FXDIB_Format GetDestFormat() override;
   FX_ARGB* GetDestPalette() override;
-  void TranslateScanline(uint8_t* dest_buf,
+  void TranslateScanline(std::vector<uint8_t>* dest_buf,

[Lei Zhang, 2016/07/20 23:09:19]

Can we flip the parameters so the in-param comes before the out-param? (Maybe
another CL)

[Wei Li, 2016/07/21 16:47:07]

Done.

                          const uint8_t* src_buf) const override;
   void TranslateDownSamples(uint8_t* dest_buf,
                             const uint8_t* src_buf,