Add "Failed" custom element state

third_party/WebKit/Source/core/dom/Node.h

Index: third_party/WebKit/Source/core/dom/Node.h
diff --git a/third_party/WebKit/Source/core/dom/Node.h b/third_party/WebKit/Source/core/dom/Node.h
index d911c98bb50e6b5b22966e5e5128dac3fec68c64..447d606148c6458e350cbf95d487d5c4e38b08d1 100644
--- a/third_party/WebKit/Source/core/dom/Node.h
+++ b/third_party/WebKit/Source/core/dom/Node.h
@@ -91,6 +91,7 @@ class Text;
 class TouchEvent;
 
 const int nodeStyleChangeShift = 19;
+const int nodeCustomElementShift = 21;
 
 enum StyleChangeType {
     NoStyleChange = 0,
@@ -100,9 +101,13 @@ enum StyleChangeType {
 };
 
 enum class CustomElementState {
+    // https://dom.spec.whatwg.org/#concept-element-custom-element-state
     Uncustomized = 0,
-    Custom = 1,
-    Undefined = 2,
+    Custom = 1 << nodeCustomElementShift,
+    Undefined = 2 << nodeCustomElementShift,
+    Failed = 3 << nodeCustomElementShift,
+
+    NotDefinedFlag = 2 << nodeCustomElementShift,
 };
 
 CORE_EXPORT std::ostream& operator<<(std::ostream&, CustomElementState);
@@ -253,8 +258,7 @@ public:
     bool isFirstLetterPseudoElement() const { return getPseudoId() == PseudoIdFirstLetter; }
     virtual PseudoId getPseudoId() const { return PseudoIdNone; }
 
-    bool isCustomElement() const { return getFlag(CustomElementFlag); }
-    CustomElementState getCustomElementState() const;
+    CustomElementState getCustomElementState() const { return static_cast<CustomElementState>(m_nodeFlags & CustomElementStateMask); }
     void setCustomElementState(CustomElementState);
     bool isV0CustomElement() const { return getFlag(V0CustomElementFlag); }
     enum V0CustomElementState {
@@ -699,8 +703,7 @@ private:
         ChildNeedsStyleRecalcFlag = 1 << 18,
         StyleChangeMask = 1 << nodeStyleChangeShift | 1 << (nodeStyleChangeShift + 1),
 
-        CustomElementFlag = 1 << 21,
-        CustomElementCustomFlag = 1 << 22,
+        CustomElementStateMask = 1 << nodeCustomElementShift | 1 << (nodeCustomElementShift + 1),

[dominicc (has gone to gerrit), 2016/07/26 05:47:42]

Maybe 0x3 << nodeCustomElementShift is simpler to read?

 
         HasNameOrIsEditingTextFlag = 1 << 23,
         HasWeakReferencesFlag = 1 << 24,