Refactor ImageFrame::setSizeAndColorSpace()

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

Index: third_party/WebKit/Source/platform/image-decoders/ImageFrame.cpp
diff --git a/third_party/WebKit/Source/platform/image-decoders/ImageFrame.cpp b/third_party/WebKit/Source/platform/image-decoders/ImageFrame.cpp
index 40952951b85fb16987b40f5a4ab85f7c284ea00a..55144017f639c4b9d9d33b420e9156eff9a45a84 100644
--- a/third_party/WebKit/Source/platform/image-decoders/ImageFrame.cpp
+++ b/third_party/WebKit/Source/platform/image-decoders/ImageFrame.cpp
@@ -103,22 +103,16 @@ bool ImageFrame::takeBitmapDataIfWritable(ImageFrame* other) {
   return true;
 }
 
-bool ImageFrame::setSizeAndColorSpace(int newWidth,
+bool ImageFrame::allocateBackingStore(int newWidth,
                                       int newHeight,
                                       sk_sp<SkColorSpace> colorSpace) {
-  // setSizeAndColorSpace() should only be called once, it leaks memory
-  // otherwise.
   DCHECK(!width() && !height());
 
   m_bitmap.setInfo(SkImageInfo::MakeN32(
       newWidth, newHeight,
       m_premultiplyAlpha ? kPremul_SkAlphaType : kUnpremul_SkAlphaType,
       std::move(colorSpace)));
-  if (!m_bitmap.tryAllocPixels(m_allocator, 0))
-    return false;
-
-  zeroFillPixelData();
-  return true;
+  return m_bitmap.tryAllocPixels(m_allocator, 0);
 }
 
 bool ImageFrame::hasAlpha() const {