CustomElements: taking CustomElementReactionStack out of frameHost

third_party/WebKit/Source/core/dom/custom/CustomElementReactionStack.cpp

Index: third_party/WebKit/Source/core/dom/custom/CustomElementReactionStack.cpp
diff --git a/third_party/WebKit/Source/core/dom/custom/CustomElementReactionStack.cpp b/third_party/WebKit/Source/core/dom/custom/CustomElementReactionStack.cpp
index e05f34bf1a3922f8973f59dca0c1bf9cd37bde8f..231b9d1b3a53bc7dc41ef55d2097a6152fedc8e6 100644
--- a/third_party/WebKit/Source/core/dom/custom/CustomElementReactionStack.cpp
+++ b/third_party/WebKit/Source/core/dom/custom/CustomElementReactionStack.cpp
@@ -12,6 +12,16 @@
 
 namespace blink {
 
+namespace {
+
+CustomElementReactionStack& customElementReactionStack()
+{
+    DEFINE_STATIC_LOCAL(CustomElementReactionStack, customElementReactionStack, (new CustomElementReactionStack));
+    return customElementReactionStack;
+}
+
+} // namespace
+
 // TODO(dominicc): Consider using linked heap structures, avoiding
 // finalizers, to make short-lived entries fast.
 
@@ -103,4 +113,9 @@ void CustomElementReactionStack::invokeBackupQueue()
     m_backupQueue->clear();
 }
 
+CustomElementReactionStack& CustomElementReactionStack::current()
+{
+    return customElementReactionStack();
+}
+
 } // namespace blink