Implement color-gamut media query

third_party/WebKit/Source/core/css/MediaValues.cpp

Index: third_party/WebKit/Source/core/css/MediaValues.cpp
diff --git a/third_party/WebKit/Source/core/css/MediaValues.cpp b/third_party/WebKit/Source/core/css/MediaValues.cpp
index 75e9f8d3b70e58b23c35baf354cf538d75eb2c81..5ac7d79dd15ab58142089660a983b56a99f56557 100644
--- a/third_party/WebKit/Source/core/css/MediaValues.cpp
+++ b/third_party/WebKit/Source/core/css/MediaValues.cpp
@@ -20,6 +20,7 @@
 #include "core/page/ChromeClient.h"
 #include "core/page/Page.h"
 #include "core/style/ComputedStyle.h"
+#include "platform/graphics/ColorSpace.h"
 #include "public/platform/WebScreenInfo.h"
 
 namespace blink {
@@ -145,6 +146,12 @@ DisplayShape MediaValues::calculateDisplayShape(LocalFrame* frame) {
   return frame->host()->chromeClient().screenInfo().displayShape;
 }
 
+ColorSpaceGamut MediaValues::calculateColorGamut(LocalFrame* frame) {
+  DCHECK(frame && frame->host());
+  return ColorSpaceUtilities::getColorSpaceGamut(
+      frame->host()->chromeClient().screenInfo());
+}
+
 bool MediaValues::computeLengthImpl(double value,
                                     CSSPrimitiveValue::UnitType type,
                                     unsigned defaultFontSize,