Plumb site engagement to the renderer process.

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 d31b73c2933e9eba7c572af82fd298f97f0d90e6..da89477ab31157cd7047cd280cd19c079ed0b950 100644
--- a/third_party/WebKit/Source/core/dom/Document.h
+++ b/third_party/WebKit/Source/core/dom/Document.h
@@ -64,6 +64,7 @@
 #include "platform/weborigin/ReferrerPolicy.h"
 #include "public/platform/WebFocusType.h"
 #include "public/platform/WebInsecureRequestPolicy.h"
+#include "public/platform/site_engagement.mojom-blink.h"
 #include "wtf/Compiler.h"
 #include "wtf/HashSet.h"
 #include "wtf/PassRefPtr.h"
@@ -1205,6 +1206,13 @@ class CORE_EXPORT Document : public ContainerNode,
   Document& ensureTemplateDocument();
   Document* templateDocumentHost() { return m_templateDocumentHost; }
 
+  mojom::blink::EngagementLevel getEngagementLevel() const {
+    return m_engagementLevel;
+  }
+  void setEngagementLevel(mojom::blink::EngagementLevel level) {
+    m_engagementLevel = level;
+  }
+
   // TODO(thestig): Rename these and related functions, since we can call them
   // for controls outside of forms as well.
   void didAssociateFormControl(Element*);
@@ -1670,6 +1678,8 @@ class CORE_EXPORT Document : public ContainerNode,
   Member<PropertyRegistry> m_propertyRegistry;
 
   unsigned m_passwordCount;
+
+  mojom::EngagementLevel m_engagementLevel;
 };
 
 extern template class CORE_EXTERN_TEMPLATE_EXPORT Supplement<Document>;