Remove UnsandboxedAuxiliary runtime flag (status=stable)

third_party/WebKit/Source/core/dom/SandboxFlags.cpp

Index: third_party/WebKit/Source/core/dom/SandboxFlags.cpp
diff --git a/third_party/WebKit/Source/core/dom/SandboxFlags.cpp b/third_party/WebKit/Source/core/dom/SandboxFlags.cpp
index fb5f37799dd65a425d8c26ff05c677cf0d698c4d..c4b7c8b893075946853aa0ce0dd1e7f571d2af4a 100644
--- a/third_party/WebKit/Source/core/dom/SandboxFlags.cpp
+++ b/third_party/WebKit/Source/core/dom/SandboxFlags.cpp
@@ -27,7 +27,6 @@
 #include "core/dom/SandboxFlags.h"
 
 #include "core/html/parser/HTMLParserIdioms.h"
-#include "platform/RuntimeEnabledFeatures.h"
 #include "wtf/text/StringBuilder.h"
 
 namespace blink {
@@ -60,8 +59,7 @@ SandboxFlags parseSandboxPolicy(const SpaceSplitString& policy,
     } else if (equalIgnoringCase(sandboxToken, "allow-orientation-lock")) {
       flags &= ~SandboxOrientationLock;
     } else if (equalIgnoringCase(sandboxToken,
-                                 "allow-popups-to-escape-sandbox") &&
-               RuntimeEnabledFeatures::unsandboxedAuxiliaryEnabled()) {
+                                 "allow-popups-to-escape-sandbox")) {
       flags &= ~SandboxPropagatesToAuxiliaryBrowsingContexts;
     } else if (equalIgnoringCase(sandboxToken, "allow-modals")) {
       flags &= ~SandboxModals;