[Experimental Framework] Make the OriginTrialContext a member of ExecutionContext

third_party/WebKit/Source/core/dom/Document.h

Index: third_party/WebKit/Source/core/dom/Document.h
diff --git a/third_party/WebKit/Source/core/dom/Document.h b/third_party/WebKit/Source/core/dom/Document.h
index 3088fc8291ea4761b336e870d3c2d9e487afdc41..c13baa73ea10ee32bdfa423596af15c784038257 100644
--- a/third_party/WebKit/Source/core/dom/Document.h
+++ b/third_party/WebKit/Source/core/dom/Document.h
@@ -140,6 +140,7 @@ class NodeIntersectionObserverData;
 class NodeIterator;
 class NthIndexCache;
 class OriginAccessEntry;
+class OriginTrialContext;
 class Page;
 class PlatformMouseEvent;
 class ProcessingInstruction;
@@ -1079,6 +1080,7 @@ protected:
     ParserSynchronizationPolicy getParserSynchronizationPolicy() const { return m_parserSyncPolicy; }
 
 private:
+    friend class DocumentOriginTrialContextTest;
     friend class IgnoreDestructiveWriteCountIncrementer;
     friend class NthIndexCache;
 
@@ -1162,6 +1164,8 @@ private:
 
     const OriginAccessEntry& accessEntryFromURL();
 
+    PassOwnPtrWillBeRawPtr<OriginTrialContext> createOriginTrialContext() override;
+
     DocumentLifecycle m_lifecycle;
 
     bool m_hasNodesWithPlaceholderStyle;