Refactor ImageFrame::setSizeAndColorSpace()

third_party/WebKit/Source/platform/image-decoders/ImageDecoder.cpp

Index: third_party/WebKit/Source/platform/image-decoders/ImageDecoder.cpp
diff --git a/third_party/WebKit/Source/platform/image-decoders/ImageDecoder.cpp b/third_party/WebKit/Source/platform/image-decoders/ImageDecoder.cpp
index 7e4e93e90a39072faa33203c1a447d343a2fb9cf..27398739a3ba9dff7c93b40e85f2e26961e12598 100644
--- a/third_party/WebKit/Source/platform/image-decoders/ImageDecoder.cpp
+++ b/third_party/WebKit/Source/platform/image-decoders/ImageDecoder.cpp
@@ -354,10 +354,11 @@ bool ImageDecoder::initFrameBuffer(size_t frameIndex) {
   size_t requiredPreviousFrameIndex = buffer->requiredPreviousFrameIndex();
   if (requiredPreviousFrameIndex == kNotFound) {
     // This frame doesn't rely on any previous data.
-    if (!buffer->setSizeAndColorSpace(size().width(), size().height(),
+    if (!buffer->allocateBackingStore(size().width(), size().height(),
                                       colorSpaceForSkImages())) {
       return setFailed();
     }
+    buffer->zeroFillPixelData();
   } else {
     ImageFrame* const prevBuffer =
         &m_frameBufferCache[requiredPreviousFrameIndex];