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-rw-r--r--Source/WebCore/platform/image-decoders/ImageDecoder.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/Source/WebCore/platform/image-decoders/ImageDecoder.h b/Source/WebCore/platform/image-decoders/ImageDecoder.h
index 911878e1d..f2aaecc47 100644
--- a/Source/WebCore/platform/image-decoders/ImageDecoder.h
+++ b/Source/WebCore/platform/image-decoders/ImageDecoder.h
@@ -276,6 +276,9 @@ namespace WebCore {
// ImageDecoder-owned pointer.
virtual ImageFrame* frameBufferAtIndex(size_t) = 0;
+ // Make the best effort guess to check if the requested frame has alpha channel.
+ virtual bool frameHasAlphaAtIndex(size_t) const;
+
void setIgnoreGammaAndColorProfile(bool flag) { m_ignoreGammaAndColorProfile = flag; }
bool ignoresGammaAndColorProfile() const { return m_ignoreGammaAndColorProfile; }