Plumb color space to DecodingImageGenerator and ImageFrameGenerator

third_party/WebKit/Source/platform/image-decoders/gif/GIFImageDecoder.cpp

Index: third_party/WebKit/Source/platform/image-decoders/gif/GIFImageDecoder.cpp
diff --git a/third_party/WebKit/Source/platform/image-decoders/gif/GIFImageDecoder.cpp b/third_party/WebKit/Source/platform/image-decoders/gif/GIFImageDecoder.cpp
index c49c01f99695e8a94a41e4827efe31486dea4151..0a810039b76fe2cc5a524abdf7644bab11a35be8 100644
--- a/third_party/WebKit/Source/platform/image-decoders/gif/GIFImageDecoder.cpp
+++ b/third_party/WebKit/Source/platform/image-decoders/gif/GIFImageDecoder.cpp
@@ -369,8 +369,10 @@ bool GIFImageDecoder::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(), nullptr))
+    if (!buffer->setSizeAndColorSpace(size().width(), size().height(),
+                                      colorSpace())) {
       return setFailed();
+    }
   } else {
     ImageFrame* prevBuffer = &m_frameBufferCache[requiredPreviousFrameIndex];
     ASSERT(prevBuffer->getStatus() == ImageFrame::FrameComplete);