Remove CFX_DIBAttribute::m_strAuthor

It is set in a couple of places, but the value is never used
for any purpose.

Change-Id: I6fc0839bc14b21ee8217fcb3eadf6c252ad67aa7
Reviewed-on: https://pdfium-review.googlesource.com/30330
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Tom Sepez <tsepez@chromium.org>

3 files changed, 0 insertions, 28 deletions

diff --git a/core/fxcodec/codec/ccodec_gifmodule.cpp b/core/fxcodec/codec/ccodec_gifmodule.cpp
index d6ab10d9c9..dc2c0c83a4 100644
--- a/core/fxcodec/codec/ccodec_gifmodule.cpp
+++ b/core/fxcodec/codec/ccodec_gifmodule.cpp
@@ -63,16 +63,6 @@ CFX_GifDecodeStatus CCodec_GifModule::LoadFrame(Context* pContext,
   pAttribute->m_nGifLeft = context->images_[frame_num]->image_info.left;
   pAttribute->m_nGifTop = context->images_[frame_num]->image_info.top;
   pAttribute->m_fAspectRatio = context->pixel_aspect_;
-  const uint8_t* buf =
-      reinterpret_cast<const uint8_t*>(context->cmt_data_.GetBuffer(0));
-  uint32_t len = context->cmt_data_.GetLength();
-  if (len > 21) {
-    uint8_t size = *buf++;
-    if (size != 0)
-      pAttribute->m_strAuthor = ByteString(buf, size);
-    else
-      pAttribute->m_strAuthor.clear();
-  }
   return CFX_GifDecodeStatus::Success;
 }
 
diff --git a/core/fxcodec/codec/ccodec_pngmodule.cpp b/core/fxcodec/codec/ccodec_pngmodule.cpp
index db5886aa29..7aedf2ee7f 100644
--- a/core/fxcodec/codec/ccodec_pngmodule.cpp
+++ b/core/fxcodec/codec/ccodec_pngmodule.cpp
@@ -75,26 +75,9 @@ static void _png_load_bmp_attribute(png_structp png_ptr,
                  &icc_proflen);
 #endif
 #if defined(PNG_TEXT_SUPPORTED)
-    int i;
-    size_t len;
-    const char* buf;
     int num_text;
     png_textp text = nullptr;
     png_get_text(png_ptr, info_ptr, &text, &num_text);
-    for (i = 0; i < num_text; i++) {
-      len = strlen(text[i].key);
-      buf = "Time";
-      if (memcmp(buf, text[i].key, std::min(len, strlen(buf)))) {
-        buf = "Author";
-        if (!memcmp(buf, text[i].key, std::min(len, strlen(buf)))) {
-          pAttribute->m_strAuthor =
-              text[i].text_length > 0
-                  ? ByteString(reinterpret_cast<uint8_t*>(text[i].text),
-                               static_cast<size_t>(text[i].text_length))
-                  : ByteString();
-        }
-      }
-    }
 #endif
   }
 }
diff --git a/core/fxcodec/fx_codec.h b/core/fxcodec/fx_codec.h
index 923eb7cb71..e64d95f45f 100644
--- a/core/fxcodec/fx_codec.h
+++ b/core/fxcodec/fx_codec.h
@@ -45,7 +45,6 @@ class CFX_DIBAttribute {
   int32_t m_nYDPI;
   float m_fAspectRatio;
   uint16_t m_wDPIUnit;
-  ByteString m_strAuthor;
   int32_t m_nGifLeft;
   int32_t m_nGifTop;
   uint32_t* m_pGifLocalPalette;