Added allowvr attribute to iframes and vrEnabled to Document

third_party/WebKit/Source/modules/vr/DocumentVR.cpp

Index: third_party/WebKit/Source/modules/vr/DocumentVR.cpp
diff --git a/third_party/WebKit/Source/core/css/CSSStyleDeclaration.cpp b/third_party/WebKit/Source/modules/vr/DocumentVR.cpp
similarity index 54%
copy from third_party/WebKit/Source/core/css/CSSStyleDeclaration.cpp
copy to third_party/WebKit/Source/modules/vr/DocumentVR.cpp
index 308d0d2abc953a8f51788bdd787ed00dcb10bb73..ad4ff90fdc29bc27e73a95442504404de05fa817 100644
--- a/third_party/WebKit/Source/core/css/CSSStyleDeclaration.cpp
+++ b/third_party/WebKit/Source/modules/vr/DocumentVR.cpp
@@ -2,15 +2,15 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "core/css/CSSStyleDeclaration.h"
+#include "modules/vr/DocumentVR.h"
 
-#include "core/css/CSSRule.h"
+#include "modules/vr/NavigatorVR.h"
 
 namespace blink {
 
-DEFINE_TRACE_WRAPPERS(CSSStyleDeclaration)
+bool DocumentVR::vrEnabled(Document& document)
 {
-    visitor->traceWrappers(parentRule());
+    return NavigatorVR::allowedToUseVR(document.frame());
 }
 
 } // namespace blink