Upgrade in-document custom elements when an element is defined.

third_party/WebKit/Source/core/core.gypi

Index: third_party/WebKit/Source/core/core.gypi
diff --git a/third_party/WebKit/Source/core/core.gypi b/third_party/WebKit/Source/core/core.gypi
index bfc2e967b4545c8b74018a7aece6d6471539281d..9ce10cd441e4f4627eb0ef533c5281d8fa4fa54b 100644
--- a/third_party/WebKit/Source/core/core.gypi
+++ b/third_party/WebKit/Source/core/core.gypi
@@ -2630,6 +2630,8 @@
             'dom/WeakIdentifierMap.h',
             'dom/XMLDocument.cpp',
             'dom/XMLDocument.h',
+            'dom/custom/CEReactionsScope.cpp',
+            'dom/custom/CEReactionsScope.h',
             'dom/custom/CustomElement.cpp',
             'dom/custom/CustomElement.h',
             'dom/custom/CustomElementDefinition.cpp',
@@ -2642,6 +2644,8 @@
             'dom/custom/CustomElementReactionQueue.h',
             'dom/custom/CustomElementReactionStack.cpp',
             'dom/custom/CustomElementReactionStack.h',
+            'dom/custom/CustomElementUpgradeReaction.cpp',
+            'dom/custom/CustomElementUpgradeReaction.h',
             'dom/custom/CustomElementUpgradeSorter.cpp',
             'dom/custom/CustomElementUpgradeSorter.h',
             'dom/custom/CustomElementsRegistry.cpp',
@@ -3996,6 +4000,7 @@
             'dom/custom/CustomElementTest.cpp',
             'dom/custom/CustomElementTestHelpers.h',
             'dom/custom/CustomElementUpgradeSorterTest.cpp',
+            'dom/custom/CustomElementsRegistryTest.cpp',
             'dom/shadow/FlatTreeTraversalTest.cpp',
             'editing/EditingCommandTest.cpp',
             'editing/EditingStrategyTest.cpp',