Implement color-gamut media query

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

Index: third_party/WebKit/Source/core/css/MediaValuesDynamic.cpp
diff --git a/third_party/WebKit/Source/core/css/MediaValuesDynamic.cpp b/third_party/WebKit/Source/core/css/MediaValuesDynamic.cpp
index 99a9345cd30f16a3a6cc2041957febfd2e1766f0..57eef496764837aa86f810010bf70493820bc145 100644
--- a/third_party/WebKit/Source/core/css/MediaValuesDynamic.cpp
+++ b/third_party/WebKit/Source/core/css/MediaValuesDynamic.cpp
@@ -136,6 +136,10 @@ DisplayShape MediaValuesDynamic::displayShape() const {
   return calculateDisplayShape(m_frame);
 }
 
+ColorSpaceGamut MediaValuesDynamic::colorGamut() const {
+  return calculateColorGamut(m_frame);
+}
+
 Document* MediaValuesDynamic::document() const {
   return m_frame->document();
 }