1 files changed, 29 insertions, 31 deletions

diff --git a/dom/base/nsContentUtils.h b/dom/base/nsContentUtils.h
index 606d67de9..bf6a59dcd 100644
--- a/dom/base/nsContentUtils.h
+++ b/dom/base/nsContentUtils.h
@@ -126,6 +126,7 @@ class EventTarget;
 class IPCDataTransfer;
 class IPCDataTransferItem;
 struct LifecycleCallbackArgs;
+struct LifecycleAdoptedCallbackArgs;
 class NodeInfo;
 class nsIContentChild;
 class nsIContentParent;
@@ -1739,17 +1740,6 @@ public:
    */
   static void RunInMetastableState(already_AddRefed<nsIRunnable> aRunnable);
 
-  // Call EnterMicroTask when you're entering JS execution.
-  // Usually the best way to do this is to use nsAutoMicroTask.
-  static void EnterMicroTask();
-  static void LeaveMicroTask();
-
-  static bool IsInMicroTask();
-  static uint32_t MicroTaskLevel();
-  static void SetMicroTaskLevel(uint32_t aLevel);
-
-  static void PerformMainThreadMicroTaskCheckpoint();
-
   /* Process viewport META data. This gives us information for the scale
    * and zoom of a page on mobile devices. We stick the information in
    * the document header and use it later on after rendering.
@@ -2711,22 +2701,36 @@ public:
   static bool HttpsStateIsModern(nsIDocument* aDocument);
 
   /**
+   * Try to upgrade an element.
+   * https://html.spec.whatwg.org/multipage/custom-elements.html#concept-try-upgrade
+   */
+  static void TryToUpgradeElement(Element* aElement);
+
+  /**
    * Looking up a custom element definition.
    * https://html.spec.whatwg.org/#look-up-a-custom-element-definition
    */
   static mozilla::dom::CustomElementDefinition*
     LookupCustomElementDefinition(nsIDocument* aDoc,
-                                  const nsAString& aLocalName,
+                                  nsIAtom* aNameAtom,
                                   uint32_t aNameSpaceID,
-                                  const nsAString* aIs = nullptr);
+                                  nsIAtom* aTypeAtom);
 
-  static void SetupCustomElement(Element* aElement,
-                                 const nsAString* aTypeExtension = nullptr);
+  static void RegisterUnresolvedElement(Element* aElement, nsIAtom* aTypeName);
+  static void UnregisterUnresolvedElement(Element* aElement);
 
-  static void EnqueueLifecycleCallback(nsIDocument* aDoc,
-                                       nsIDocument::ElementCallbackType aType,
+  static mozilla::dom::CustomElementDefinition*
+  GetElementDefinitionIfObservingAttr(Element* aCustomElement,
+                                      nsIAtom* aExtensionType,
+                                      nsIAtom* aAttrName);
+
+  static void EnqueueUpgradeReaction(Element* aElement,
+                                     mozilla::dom::CustomElementDefinition* aDefinition);
+
+  static void EnqueueLifecycleCallback(nsIDocument::ElementCallbackType aType,
                                        Element* aCustomElement,
                                        mozilla::dom::LifecycleCallbackArgs* aArgs = nullptr,
+                                       mozilla::dom::LifecycleAdoptedCallbackArgs* aAdoptedCallbackArgs = nullptr,
                                        mozilla::dom::CustomElementDefinition* aDefinition = nullptr);
 
   static void GetCustomPrototype(nsIDocument* aDoc,
@@ -2743,6 +2747,12 @@ public:
   static bool
   IsLocalRefURL(const nsString& aString);
 
+  static bool
+  IsWebComponentsEnabled() { return sIsWebComponentsEnabled; }
+
+  static bool
+  IsCustomElementsEnabled() { return sIsCustomElementsEnabled; }
+
 private:
   static bool InitializeEventTable();
 
@@ -2829,7 +2839,6 @@ private:
   static bool sInitialized;
   static uint32_t sScriptBlockerCount;
   static uint32_t sDOMNodeRemovedSuppressCount;
-  static uint32_t sMicroTaskLevel;
   // Not an nsCOMArray because removing elements from those is slower
   static AutoTArray<nsCOMPtr<nsIRunnable>, 8>* sBlockedScriptRunners;
   static uint32_t sRunnersCountAtFirstBlocker;
@@ -2850,6 +2859,8 @@ private:
   static bool sIsUserTimingLoggingEnabled;
   static bool sIsFrameTimingPrefEnabled;
   static bool sIsExperimentalAutocompleteEnabled;
+  static bool sIsWebComponentsEnabled;
+  static bool sIsCustomElementsEnabled;
   static bool sEncodeDecodeURLHash;
   static bool sGettersDecodeURLHash;
   static bool sPrivacyResistFingerprinting;
@@ -2905,19 +2916,6 @@ public:
   }
 };
 
-class MOZ_STACK_CLASS nsAutoMicroTask
-{
-public:
-  nsAutoMicroTask()
-  {
-    nsContentUtils::EnterMicroTask();
-  }
-  ~nsAutoMicroTask()
-  {
-    nsContentUtils::LeaveMicroTask();
-  }
-};
-
 namespace mozilla {
 namespace dom {