Remove CFX_BufferSeekableReadStream.

Replace it with CFX_ReadOnlyMemoryStream, which does the same thing.
Take some checks from CFX_BufferSeekableReadStream and add them
CFX_ReadOnlyMemoryStream.

Change-Id: I25554c3aec3ec96967f8df16ca68a64dba121b6f
Reviewed-on: https://pdfium-review.googlesource.com/40070
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>

1 files changed, 0 insertions, 19 deletions

diff --git a/testing/fx_string_testhelpers.h b/testing/fx_string_testhelpers.h
index 4cddefab0a..a828d825ab 100644
--- a/testing/fx_string_testhelpers.h
+++ b/testing/fx_string_testhelpers.h
@@ -32,23 +32,4 @@ class CFX_InvalidSeekableReadStream : public IFX_SeekableReadStream {
   const FX_FILESIZE data_size_;
 };
 
-class CFX_BufferSeekableReadStream : public IFX_SeekableReadStream {
- public:
-  template <typename T, typename... Args>
-  friend RetainPtr<T> pdfium::MakeRetain(Args&&... args);
-
-  // IFX_SeekableReadStream:
-  bool ReadBlock(void* buffer, FX_FILESIZE offset, size_t size) override;
-
-  FX_FILESIZE GetSize() override {
-    return static_cast<FX_FILESIZE>(data_.size());
-  }
-
- private:
-  explicit CFX_BufferSeekableReadStream(pdfium::span<const uint8_t> data);
-  ~CFX_BufferSeekableReadStream() override;
-
-  pdfium::span<const uint8_t> data_;
-};
-
 #endif  // TESTING_FX_STRING_TESTHELPERS_H_