[ImageResource 4] Split ImageResource into Resource and Image parts

third_party/WebKit/Source/platform/graphics/BitmapImage.cpp

Index: third_party/WebKit/Source/platform/graphics/BitmapImage.cpp
diff --git a/third_party/WebKit/Source/platform/graphics/BitmapImage.cpp b/third_party/WebKit/Source/platform/graphics/BitmapImage.cpp
index 5cd759c6dbf5937ca00aefae778bc9e647accec9..f8e46a0b7f20e3f74ca08554ba140f68f324b356 100644
--- a/third_party/WebKit/Source/platform/graphics/BitmapImage.cpp
+++ b/third_party/WebKit/Source/platform/graphics/BitmapImage.cpp
@@ -186,7 +186,8 @@ Image::SizeAvailability BitmapImage::setData(PassRefPtr<SharedBuffer> data,
     return SizeAvailable;
 
   // If ImageSource::setData() fails, we know that this is a decode error.
-  // Report size available so that it gets registered as such in ImageResource.
+  // Report size available so that it gets registered as such in
+  // ImageResourceContent.
   if (!m_source.setData(std::move(data), allDataReceived))
     return SizeAvailable;