Refactor ImageFrame::setSizeAndColorSpace()

third_party/WebKit/Source/platform/image-decoders/jpeg/JPEGImageDecoder.cpp

Index: third_party/WebKit/Source/platform/image-decoders/jpeg/JPEGImageDecoder.cpp
diff --git a/third_party/WebKit/Source/platform/image-decoders/jpeg/JPEGImageDecoder.cpp b/third_party/WebKit/Source/platform/image-decoders/jpeg/JPEGImageDecoder.cpp
index 641012756bc353bc3cce7b30e28e29cc6acd17a1..f5529c378ab50d7e855e57c41dfeff60282ccce4 100644
--- a/third_party/WebKit/Source/platform/image-decoders/jpeg/JPEGImageDecoder.cpp
+++ b/third_party/WebKit/Source/platform/image-decoders/jpeg/JPEGImageDecoder.cpp
@@ -937,10 +937,12 @@ bool JPEGImageDecoder::outputScanlines() {
     DCHECK_EQ(info->output_height,
               static_cast<JDIMENSION>(m_decodedSize.height()));
 
-    if (!buffer.setSizeAndColorSpace(info->output_width, info->output_height,
+    if (!buffer.allocateBackingStore(info->output_width, info->output_height,
                                      colorSpaceForSkImages()))
       return setFailed();
 
+    buffer.zeroFillPixelData();
+
     // The buffer is transparent outside the decoded area while the image is
     // loading. The image will be marked fully opaque in complete().
     buffer.setStatus(ImageFrame::FramePartial);