Animated WebP: Optimize decoding in case of seeking

Source/core/platform/graphics/chromium/test/MockImageDecoder.h

Index: Source/core/platform/graphics/chromium/test/MockImageDecoder.h
diff --git a/Source/core/platform/graphics/chromium/test/MockImageDecoder.h b/Source/core/platform/graphics/chromium/test/MockImageDecoder.h
index 50b05c84457dd32cc1a57d5cb3fe371eb5258ad3..354fa16e96b42c0ef5915239c622d0135f377145 100644
--- a/Source/core/platform/graphics/chromium/test/MockImageDecoder.h
+++ b/Source/core/platform/graphics/chromium/test/MockImageDecoder.h
@@ -34,7 +34,7 @@ class MockImageDecoderClient {
 public:
     virtual void decoderBeingDestroyed() = 0;
     virtual void frameBufferRequested() = 0;
-    virtual ImageFrame::FrameStatus frameStatus() = 0;
+    virtual ImageFrame::Status frameStatus() = 0;
     virtual size_t frameCount() = 0;
     virtual int repetitionCount() const = 0;
     virtual float frameDuration() const = 0;