Add histograms for animated image types

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 "platform/graphics/ColorSpace.h"
 #include "wtf/Threading.h"
 #include "wtf/text/WTFString.h"
@@ skipping 16 matching lines @@
                                         ? ImageBMP
                                         : DecodedImageType::ImageUnknown;
 
   DEFINE_THREAD_SAFE_STATIC_LOCAL(
       EnumerationHistogram, decodedImageTypeHistogram,
       new EnumerationHistogram("Blink.DecodedImageType",
                                DecodedImageTypeEnumEnd));
   decodedImageTypeHistogram.count(decodedImageType);
 }
 
+void BitmapImageMetrics::countAnimatedImageType(AnimatedImageType type) {
+  DEFINE_THREAD_SAFE_STATIC_LOCAL(
+      EnumerationHistogram, animatedImageTypeHistogram,
+      new EnumerationHistogram("Blink.AnimatedImageType",
+                               AnimatedImageTypeEnumEnd));
+  animatedImageTypeHistogram.count(type);
+}
+
 void BitmapImageMetrics::countImageOrientation(
     const ImageOrientationEnum orientation) {
   DEFINE_THREAD_SAFE_STATIC_LOCAL(
       EnumerationHistogram, orientationHistogram,
       new EnumerationHistogram("Blink.DecodedImage.Orientation",
                                ImageOrientationEnumEnd));
   orientationHistogram.count(orientation);
 }
 
 void BitmapImageMetrics::countImageGammaAndGamut(SkColorSpace* colorSpace) {
@@ skipping 33 matching lines @@
     } else if (colorSpace->gammaIsLinear()) {
       gamma = GammaLinear;
     } else {
       gamma = GammaNonStandard;
     }
   }
   return gamma;
 }
 
 }  // namespace blink