Implement color-gamut media query

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

 // Copyright 2014 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 "core/css/MediaValues.h"
 
 #include "core/css/CSSHelper.h"
 #include "core/css/MediaValuesCached.h"
 #include "core/css/MediaValuesDynamic.h"
 #include "core/dom/Document.h"
 #include "core/dom/Element.h"
 #include "core/frame/FrameHost.h"
 #include "core/frame/FrameView.h"
 #include "core/frame/LocalFrame.h"
 #include "core/frame/Settings.h"
 #include "core/html/imports/HTMLImportsController.h"
 #include "core/layout/LayoutObject.h"
 #include "core/layout/api/LayoutViewItem.h"
 #include "core/layout/compositing/PaintLayerCompositor.h"
 #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 {
 
 MediaValues* MediaValues::createDynamicIfFrameExists(LocalFrame* frame) {
   if (frame)
     return MediaValuesDynamic::create(frame);
   return MediaValuesCached::create();
 }
 
@@ skipping 105 matching lines @@
 int MediaValues::calculateAvailableHoverTypes(LocalFrame* frame) {
   ASSERT(frame && frame->settings());
   return frame->settings()->getAvailableHoverTypes();
 }
 
 DisplayShape MediaValues::calculateDisplayShape(LocalFrame* frame) {
   DCHECK(frame && frame->host());
   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,
                                     double viewportWidth,
                                     double viewportHeight,
                                     double& result) {
   // The logic in this function is duplicated from
   // CSSToLengthConversionData::zoomedComputedPixels() because
   // MediaValues::computeLength() needs nearly identical logic, but we haven't
   // found a way to make CSSToLengthConversionData::zoomedComputedPixels() more
@@ skipping 52 matching lines @@
 
 LocalFrame* MediaValues::frameFrom(Document& document) {
   Document* executingDocument = document.importsController()
                                     ? document.importsController()->master()
                                     : &document;
   ASSERT(executingDocument);
   return executingDocument->frame();
 }
 
 }  // namespace blink