import changes from rmottola/Arctic-Fox:

- Bug 940273 - Part 1 - Fetch changes from maple twig to support Service Worker Cache. (5f8e82dd7)
- Bug 940273 - Part 1b - Expose nsFileProtocolHandler.h in mozilla/net. (71a3ebcf4)
- Bug 940273 - Part 2 - Add a pref to enable Service Worker Cache. (2e7b478d3)
- patch header include (3b90a9b8d)
- override -> MOZ_OVERRIDE (8f51321bc)
- override -> MOZ_OVERRIDE (5f4ab5143)
- Bug 1136563 - ARIA 1.1: Support role 'switch' (2484c9c27)
- Bug 1121518 - ARIA 1.1: Add support for role 'searchbox' (8d3ee1204)
- override -> MOZ_OVERRIDE (3db7a0cb4)
- Bug 1137714 - Make roleDescription nicer/correct/faster (da6beb861)
- Bug 1134280 - Get rid of Tag() - patch 1 - Is{HTML,XUL,MathML,SVG}Element and IsAnyOf{HTML,XUL,MathML,SVG}Elements (133801ca1)
- Bug 1134280 - Get rid of Tag() - patch 2.1 - /accessible - Fix all the occurrences (fbef71d88)
- Bug 1134280 - Get rid of Tag() - patch 2.2 - /editor - Fix all the occurrences (e54a21dcc)
- Bug 1134280 - Get rid of Tag() - patch 2.3 - dom/base and docshell - Fix all the occurrences (8bf192106)
- Bug 1134280 - Get rid of Tag() - patch 2.4 - layout/mathml - Fix all the occurrences (7914f351d)
- Bug 1134280 - Get rid of Tag() - patch 2.5 - dom/xul - Fix all the occurrences (6611b95ef)
- Bug 1134280 - Get rid of Tag() - patch 2.6 - layout/base and layout/form - Fix all the occurrences (61e06ff31)
- Bug 1134280 - Get rid of Tag() - patch 2.7 - layout/generic - Fix all the occurrences (bbe5865c2)
- Bug 1134280 - Get rid of Tag() - patch 2.8 - dom/html - Fix all the occurrences (7af471da5)
- Bug 1134280 - Get rid of Tag() - patch 2.9 - dom/svg, dom/xml, dom/xslt and dom/xbl - Fix all the occurrences (ab9769748)
- Bug 1134280 - Get rid of Tag() - patch 2.10 - dom/events, dom/mathml, dom/plugins, dom/smil - Fix all the occurrences (421ba62f4)
- Bug 1134280 - Get rid of Tag() - patch 2.11 - layout/xul - Fix all the occurrences (e19e64b2c)
- Bug 1134280 - Get rid of Tag() - patch 2.12 - layout/style, layout/svg - Fix all the occurrences (7ec90f520)
- Bug 1134280 - Get rid of Tag() - patch 2.13 - Fix all the occurrences (a887a4341)
- Bug 1134280 - Get rid of Tag() - patch 3 - nsContentUtils::IsHTMLBlock should work with nsIContent inste nsIAtom (28fa04521)
- Bug 1134280 - Get rid of Tag() - patch 4 - Get rid of nsDocumentEncoder::IsTag (ed4bf4d48)
- Bug 1134280 - Get rid of Tag() - patch 5 - nsGenericHTMLElement::IsHTMLElement (70a2822c7)
- Bug 1134280 - Get rid of Tag() - patch 6 - Remove nsINode::Tag() (85885131f)
- Bug 1134280 - Get rid of Tag() - patch 7 - Followup to fix bustage. (actuall, backport, it was missing) (cfcfa3e74)
- Bug 1134280 - Get rid of Tag() - patch 8 - Fixed a debug-only compilation issue (502319995)
- Bug 1356843 - Fix -Wcomma warnings in dom/base/ and dom/xml/. clang's -Wcomma warning warns about suspicious use of the comma operator such as between two statements or to call a function for side effects within an expression. (0f1ad0554)

layout/style/nsCSSRuleProcessor.cpp

@@ -668,7 +668,7 @@ void RuleHash::EnumerateAllRules(Element* aElement, ElementDependentRuleProcesso
                                  NodeMatchContext& aNodeContext)
 {
   int32_t nameSpace = aElement->GetNameSpaceID();
-  nsIAtom* tag = aElement->Tag();
+  nsIAtom* tag = aElement->NodeInfo()->NameAtom();
   nsIAtom* id = aElement->GetID();
   const nsAttrValue* classList = aElement->GetClasses();
 
@@ -1678,7 +1678,7 @@ StateSelectorMatches(Element* aElement,
                                            NS_EVENT_STATE_HOVER) &&
       aTreeMatchContext.mCompatMode == eCompatibility_NavQuirks &&
       ActiveHoverQuirkMatches(aSelector, aSelectorFlags) &&
-      aElement->IsHTML() && !nsCSSRuleProcessor::IsLink(aElement)) {
+      aElement->IsHTMLElement() && !nsCSSRuleProcessor::IsLink(aElement)) {
     // In quirks mode, only make links sensitive to selectors ":active"
     // and ":hover".
     return false;
@@ -1757,9 +1757,9 @@ static bool SelectorMatches(Element* aElement,
 
   if (aSelector->mLowercaseTag) {
     nsIAtom* selectorTag =
-      (aTreeMatchContext.mIsHTMLDocument && aElement->IsHTML()) ?
+      (aTreeMatchContext.mIsHTMLDocument && aElement->IsHTMLElement()) ?
         aSelector->mLowercaseTag : aSelector->mCasedTag;
-    if (selectorTag != aElement->Tag()) {
+    if (selectorTag != aElement->NodeInfo()->NameAtom()) {
       return false;
     }
   }
@@ -1870,7 +1870,7 @@ static bool SelectorMatches(Element* aElement,
           } while (child &&
                    (!IsSignificantChild(child, true, false) ||
                     (child->GetNameSpaceID() == aElement->GetNameSpaceID() &&
-                     child->Tag()->Equals(nsDependentString(pseudoClass->u.mString)))));
+                     child->NodeInfo()->NameAtom()->Equals(nsDependentString(pseudoClass->u.mString)))));
           if (child != nullptr) {
             return false;
           }
@@ -2073,7 +2073,7 @@ static bool SelectorMatches(Element* aElement,
         break;
 
       case nsCSSPseudoClasses::ePseudoClass_mozIsHTML:
-        if (!aTreeMatchContext.mIsHTMLDocument || !aElement->IsHTML()) {
+        if (!aTreeMatchContext.mIsHTMLDocument || !aElement->IsHTMLElement()) {
           return false;
         }
         break;
@@ -2152,7 +2152,7 @@ static bool SelectorMatches(Element* aElement,
 
       case nsCSSPseudoClasses::ePseudoClass_mozTableBorderNonzero:
         {
-          if (!aElement->IsHTML(nsGkAtoms::table)) {
+          if (!aElement->IsHTMLElement(nsGkAtoms::table)) {
             return false;
           }
           const nsAttrValue *val = aElement->GetParsedAttr(nsGkAtoms::border);
@@ -2248,7 +2248,7 @@ static bool SelectorMatches(Element* aElement,
 
       do {
         bool isHTML =
-          (aTreeMatchContext.mIsHTMLDocument && aElement->IsHTML());
+          (aTreeMatchContext.mIsHTMLDocument && aElement->IsHTMLElement());
         matchAttribute = isHTML ? attr->mLowercaseAttr : attr->mCasedAttr;
         if (attr->mNameSpace == kNameSpaceID_Unknown) {
           // Attr selector with a wildcard namespace.  We have to examine all
@@ -3709,7 +3709,7 @@ AncestorFilter::PushAncestor(Element *aElement)
 #ifdef DEBUG
   mElements.AppendElement(aElement);
 #endif
-  mHashes.AppendElement(aElement->Tag()->hash());
+  mHashes.AppendElement(aElement->NodeInfo()->NameAtom()->hash());
   nsIAtom *id = aElement->GetID();
   if (id) {
     mHashes.AppendElement(id->hash());