Update straggling ImageSource references

Source/web/ImageDecodeBench.cpp

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifdef WTF
 
 Provides a minimal wrapping of the Blink image decoders. Used to perform
 a non-threaded, memory-to-memory image decode using micro second accuracy
 clocks to measure image decode time. Optionally applies color correction
 during image decoding on supported platforms (default off). Usage:
@@ skipping 255 matching lines @@
         exit(2);
     }
 
     fclose(fp);
     return SharedBuffer::create(buffer.get(), fileSize);
 }
 
 bool decodeImageData(SharedBuffer* data, bool colorCorrection)
 {
     OwnPtr<ImageDecoder> decoder = ImageDecoder::create(*data,
-        ImageSource::AlphaPremultiplied, colorCorrection ?
-            ImageSource::GammaAndColorProfileApplied : ImageSource::GammaAndColorProfileIgnored);
+        ImageDecoder::AlphaPremultiplied, colorCorrection ?
+            ImageDecoder::GammaAndColorProfileApplied : ImageDecoder::GammaAndColorProfileIgnored);
 
     bool allDataReceived = true;
     decoder->setData(data, allDataReceived);
 
     int frameCount = decoder->frameCount();
     for (int i = 0; i < frameCount; ++i) {
         if (!decoder->frameBufferAtIndex(i))
             return false;
     }
 
@@ skipping 86 matching lines @@
             exit(3);
         }
     }
 
     // Results to stdout.
 
     double averageTime = totalTime / static_cast<double>(iterations);
     printf("%f %f\n", totalTime, averageTime);
     return 0;
 }