Revert of Fix ImageAnimation constant names after Blink renaming

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 845fba9a1125e06dd09914674c8083d731bde1fe..5ee289a40e3ca26c6604984daf57cd59664b3c46 100644
--- a/third_party/WebKit/Source/platform/image-decoders/gif/GIFImageDecoder.cpp
+++ b/third_party/WebKit/Source/platform/image-decoders/gif/GIFImageDecoder.cpp
@@ -36,7 +36,7 @@
                                  const ColorBehavior& color_behavior,
                                  size_t max_decoded_bytes)
     : ImageDecoder(alpha_option, color_behavior, max_decoded_bytes),
-      repetition_count_(kAnimationLoopOnce) {}
+      repetition_count_(kCAnimationLoopOnce) {}
 
 GIFImageDecoder::~GIFImageDecoder() {}
 
@@ -71,9 +71,9 @@
   // later in the stream. It is also possible that no frames are in the
   // stream. In these cases we should just loop once.
   if (IsAllDataReceived() && ParseCompleted() && reader_->imagesCount() == 1)
-    repetition_count_ = kAnimationNone;
+    repetition_count_ = kCAnimationNone;
   else if (Failed() || (reader_ && (!reader_->imagesCount())))
-    repetition_count_ = kAnimationLoopOnce;
+    repetition_count_ = kCAnimationLoopOnce;
   else if (reader_ && reader_->loopCount() != cLoopCountNotSeen)
     repetition_count_ = reader_->loopCount();
   return repetition_count_;