Added allowvr attribute to iframes and vrEnabled to Document

third_party/WebKit/Source/core/frame/FrameOwner.h

Index: third_party/WebKit/Source/core/frame/FrameOwner.h
diff --git a/third_party/WebKit/Source/core/frame/FrameOwner.h b/third_party/WebKit/Source/core/frame/FrameOwner.h
index 646444883fa52fe95804abdf5e81dcf076532624..243204337096b3a0dd9ff4e432c69888e155eb99 100644
--- a/third_party/WebKit/Source/core/frame/FrameOwner.h
+++ b/third_party/WebKit/Source/core/frame/FrameOwner.h
@@ -41,6 +41,7 @@ public:
     virtual int marginWidth() const = 0;
     virtual int marginHeight() const = 0;
     virtual bool allowFullscreen() const = 0;
+    virtual bool allowVR() const = 0;
     virtual const WebVector<WebPermissionType>& delegatedPermissions() const = 0;
 };
 
@@ -64,6 +65,7 @@ public:
     int marginWidth() const override { return -1; }
     int marginHeight() const override { return -1; }
     bool allowFullscreen() const override { return false; }
+    bool allowVR() const override { return false; }
     const WebVector<WebPermissionType>& delegatedPermissions() const override
     {
         DEFINE_STATIC_LOCAL(WebVector<WebPermissionType>, permissions, ());