Add back in check for gammaIsLinear() to UMA

third_party/WebKit/Source/platform/graphics/BitmapImageMetrics.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.
 
 #include "platform/graphics/BitmapImageMetrics.h"
 
 #include "platform/Histogram.h"
 #include "wtf/Threading.h"
 #include "wtf/text/WTFString.h"
 
@@ skipping 17 matching lines @@
 {
     DEFINE_THREAD_SAFE_STATIC_LOCAL(EnumerationHistogram, orientationHistogram, new EnumerationHistogram("Blink.DecodedImage.Orientation", ImageOrientationEnumEnd));
     orientationHistogram.count(orientation);
 }
 
 void BitmapImageMetrics::countGamma(SkColorSpace* colorSpace)
 {
     DEFINE_THREAD_SAFE_STATIC_LOCAL(EnumerationHistogram, gammaNamedHistogram, new EnumerationHistogram("Blink.ColorSpace.Destination", GammaEnd));
 
     if (colorSpace) {
-        // TODO (msarett): Add a check for gammaIsLinear() when that API lands in Skia.
         Gamma gamma;
         if (colorSpace->gammaCloseToSRGB()) {
             gamma = GammaSRGB;
+        } else if (colorSpace->gammaIsLinear()) {
+            gamma = GammaLinear;
         } else {
             gamma = GammaNonStandard;
         }
 
         gammaNamedHistogram.count(gamma);
     } else {
         gammaNamedHistogram.count(GammaNull);
     }
 }
 
 } // namespace blink