Revert of Fix ImageAnimation constant names after Blink renaming

third_party/WebKit/Source/platform/testing/ImageDecodeBench.cpp

Index: third_party/WebKit/Source/platform/testing/ImageDecodeBench.cpp
diff --git a/third_party/WebKit/Source/platform/testing/ImageDecodeBench.cpp b/third_party/WebKit/Source/platform/testing/ImageDecodeBench.cpp
index 9fc57c794207db0f0656bb22664ae52753ff4d17..4ef02ef74e1dbe60c1868871e3dfae3e2aab0fa7 100644
--- a/third_party/WebKit/Source/platform/testing/ImageDecodeBench.cpp
+++ b/third_party/WebKit/Source/platform/testing/ImageDecodeBench.cpp
@@ -226,7 +226,6 @@
 
   RefPtr<SharedBuffer> packet_data = SharedBuffer::Create();
   size_t position = 0;
-  size_t next_frame_to_decode = 0;
   while (true) {
     const char* packet;
     size_t length = data->GetSomeData(packet, position);
@@ -236,14 +235,12 @@
     position += length;
 
     bool all_data_received = position == data->size();
-    size_t frame_count = decoder->FrameCount();
-    for (; next_frame_to_decode < frame_count; ++next_frame_to_decode) {
-      decoder->SetData(packet_data.Get(), all_data_received);
-      ImageFrame* frame = decoder->FrameBufferAtIndex(next_frame_to_decode);
-      if (frame->GetStatus() != ImageFrame::kFrameComplete)
+    decoder->SetData(packet_data.Get(), all_data_received);
+
+    int frame_count = decoder->FrameCount();
+    for (int i = 0; i < frame_count; ++i) {
+      if (!decoder->FrameBufferAtIndex(i))
         break;
-      decoder->SetData(PassRefPtr<SegmentReader>(nullptr), false);
-      decoder->ClearCacheExceptFrame(next_frame_to_decode);
     }
 
     if (all_data_received || decoder->Failed())