Remove opaque alpha channel special case

third_party/WebKit/Source/platform/image-decoders/webp/WEBPImageDecoder.cpp

Index: third_party/WebKit/Source/platform/image-decoders/webp/WEBPImageDecoder.cpp
diff --git a/third_party/WebKit/Source/platform/image-decoders/webp/WEBPImageDecoder.cpp b/third_party/WebKit/Source/platform/image-decoders/webp/WEBPImageDecoder.cpp
index 2fdf29e19ba2dbd5df6681985877f3ed1050d320..22bc98f219c7cc6a77d1a263865fd25c419df083 100644
--- a/third_party/WebKit/Source/platform/image-decoders/webp/WEBPImageDecoder.cpp
+++ b/third_party/WebKit/Source/platform/image-decoders/webp/WEBPImageDecoder.cpp
@@ -464,11 +464,10 @@ bool WEBPImageDecoder::DecodeSingleFrame(const uint8_t* data_bytes,
                                   ColorSpaceForSkImages()))
       return SetFailed();
     buffer.ZeroFillPixelData();
-    buffer.SetStatus(ImageFrame::kFramePartial);
     // The buffer is transparent outside the decoded area while the image is
     // loading. The correct alpha value for the frame will be set when it is
     // fully decoded.
-    buffer.SetHasAlpha(true);
+    buffer.SetStatus(ImageFrame::kFramePartial);
     buffer.SetOriginalFrameRect(IntRect(IntPoint(), Size()));
   }