Bug 1565767 part 5. Remove some unnecesary refcounting at nsIContent::GetBaseURI callsites. r=peterv

Differential Revision: https://phabricator.services.mozilla.com/D37973

--HG--
extra : moz-landing-system : lando

accessible/generic/ImageAccessible.cpp

@@ -152,10 +152,10 @@ already_AddRefed<nsIURI> ImageAccessible::GetLongDescURI() const {
         longdesc.FindChar('\r') != -1 || longdesc.FindChar('\n') != -1) {
       return nullptr;
     }
-    nsCOMPtr<nsIURI> baseURI = mContent->GetBaseURI();
     nsCOMPtr<nsIURI> uri;
     nsContentUtils::NewURIWithDocumentCharset(getter_AddRefs(uri), longdesc,
-                                              mContent->OwnerDoc(), baseURI);
+                                              mContent->OwnerDoc(),
+                                              mContent->GetBaseURI());
     return uri.forget();
   }
 

accessible/xul/XULElementAccessibles.cpp

@@ -205,12 +205,11 @@ already_AddRefed<nsIURI> XULLinkAccessible::AnchorURIAt(
   nsAutoString href;
   mContent->AsElement()->GetAttr(kNameSpaceID_None, nsGkAtoms::href, href);
 
-  nsCOMPtr<nsIURI> baseURI = mContent->GetBaseURI();
   dom::Document* document = mContent->OwnerDoc();
 
   nsCOMPtr<nsIURI> anchorURI;
   NS_NewURI(getter_AddRefs(anchorURI), href,
-            document->GetDocumentCharacterSet(), baseURI);
+            document->GetDocumentCharacterSet(), mContent->GetBaseURI());
 
   return anchorURI.forget();
 }

docshell/base/nsPingListener.cpp

@@ -273,9 +273,9 @@ static void ForEachPing(nsIContent* aContent, ForEachPingCallback aCallback,
   nsWhitespaceTokenizer tokenizer(value);
 
   while (tokenizer.hasMoreTokens()) {
-    nsCOMPtr<nsIURI> uri, baseURI = aContent->GetBaseURI();
-    ios->NewURI(NS_ConvertUTF16toUTF8(tokenizer.nextToken()), charset.get(),
-                baseURI, getter_AddRefs(uri));
+    nsCOMPtr<nsIURI> uri;
+    NS_NewURI(getter_AddRefs(uri), tokenizer.nextToken(), charset.get(),
+              aContent->GetBaseURI());
     // if we can't generate a valid URI, then there is nothing to do
     if (!uri) {
       continue;

dom/base/nsFrameLoader.cpp

@@ -445,7 +445,7 @@ void nsFrameLoader::LoadFrame(bool aOriginalSrc) {
     return;
   }
 
-  nsCOMPtr<nsIURI> base_uri = mOwnerContent->GetBaseURI();
+  nsIURI* base_uri = mOwnerContent->GetBaseURI();
   auto encoding = doc->GetDocumentCharacterSet();
 
   nsCOMPtr<nsIURI> uri;
@@ -635,8 +635,7 @@ nsresult nsFrameLoader::ReallyStartLoadingInternal() {
 
   if (isSrcdoc) {
     loadState->SetSrcdocData(srcdoc);
-    nsCOMPtr<nsIURI> baseURI = mOwnerContent->GetBaseURI();
-    loadState->SetBaseURI(baseURI);
+    loadState->SetBaseURI(mOwnerContent->GetBaseURI());
   }
 
   nsCOMPtr<nsIReferrerInfo> referrerInfo = new ReferrerInfo();

dom/base/nsHTMLContentSerializer.cpp

@@ -104,7 +104,7 @@ bool nsHTMLContentSerializer::SerializeHTMLAttributes(
         // Would be nice to handle OBJECT tags, but that gets more complicated
         // since we have to search the tag list for CODEBASE as well. For now,
         // just leave them relative.
-        nsCOMPtr<nsIURI> uri = aElement->GetBaseURI();
+        nsIURI* uri = aElement->GetBaseURI();
         if (uri) {
           nsAutoString absURI;
           rv = NS_MakeAbsoluteURI(absURI, valueStr, uri);

dom/base/nsImageLoadingContent.cpp

@@ -1353,7 +1353,7 @@ nsresult nsImageLoadingContent::StringToURI(const nsAString& aSpec,
 
   // (1) Get the base URI
   nsIContent* thisContent = AsContent();
-  nsCOMPtr<nsIURI> baseURL = thisContent->GetBaseURI();
+  nsIURI* baseURL = thisContent->GetBaseURI();
 
   // (2) Get the charset
   auto encoding = aDocument->GetDocumentCharacterSet();

dom/base/nsObjectLoadingContent.cpp

@@ -1492,7 +1492,7 @@ nsObjectLoadingContent::UpdateObjectParameters() {
   ///
 
   nsAutoString codebaseStr;
-  nsCOMPtr<nsIURI> docBaseURI = thisElement->GetBaseURI();
+  nsIURI* docBaseURI = thisElement->GetBaseURI();
   thisElement->GetAttr(kNameSpaceID_None, nsGkAtoms::codebase, codebaseStr);
 
   if (!codebaseStr.IsEmpty()) {
@@ -1508,6 +1508,11 @@ nsObjectLoadingContent::UpdateObjectParameters() {
     }
   }
 
+  // If we failed to build a valid URI, use the document's base URI
+  if (!newBaseURI) {
+    newBaseURI = docBaseURI;
+  }
+
   nsAutoString rawTypeAttr;
   thisElement->GetAttr(kNameSpaceID_None, nsGkAtoms::type, rawTypeAttr);
   if (!rawTypeAttr.IsEmpty()) {
@@ -1518,11 +1523,6 @@ nsObjectLoadingContent::UpdateObjectParameters() {
     CopyUTF16toUTF8(mime, newMime);
   }
 
-  // If we failed to build a valid URI, use the document's base URI
-  if (!newBaseURI) {
-    newBaseURI = docBaseURI;
-  }
-
   ///
   /// URI
   ///

dom/base/nsTreeSanitizer.cpp

@@ -1286,9 +1286,9 @@ bool nsTreeSanitizer::SanitizeURL(mozilla::dom::Element* aElement,
   nsIScriptSecurityManager* secMan = nsContentUtils::GetSecurityManager();
   uint32_t flags = nsIScriptSecurityManager::DISALLOW_INHERIT_PRINCIPAL;
 
-  nsCOMPtr<nsIURI> baseURI = aElement->GetBaseURI();
   nsCOMPtr<nsIURI> attrURI;
-  nsresult rv = NS_NewURI(getter_AddRefs(attrURI), v, nullptr, baseURI);
+  nsresult rv =
+      NS_NewURI(getter_AddRefs(attrURI), v, nullptr, aElement->GetBaseURI());
   if (NS_SUCCEEDED(rv)) {
     if (mCidEmbedsOnly && kNameSpaceID_None == aNamespace) {
       if (nsGkAtoms::src == aLocalName || nsGkAtoms::background == aLocalName) {
@@ -1383,9 +1383,8 @@ void nsTreeSanitizer::SanitizeChildren(nsINode* aRoot) {
         nsContentUtils::GetNodeTextContent(node, false, styleText);
 
         nsAutoString sanitizedStyle;
-        nsCOMPtr<nsIURI> baseURI = node->GetBaseURI();
         if (SanitizeStyleSheet(styleText, sanitizedStyle, aRoot->OwnerDoc(),
-                               baseURI)) {
+                               node->GetBaseURI())) {
           nsContentUtils::SetNodeTextContent(node, sanitizedStyle, true);
         } else {
           // If the node had non-text child nodes, this operation zaps those.

dom/base/nsXHTMLContentSerializer.cpp

@@ -277,7 +277,7 @@ bool nsXHTMLContentSerializer::SerializeAttributes(
           // but that gets more complicated since we have to
           // search the tag list for CODEBASE as well.
           // For now, just leave them relative.
-          nsCOMPtr<nsIURI> uri = aElement->GetBaseURI();
+          nsIURI* uri = aElement->GetBaseURI();
           if (uri) {
             nsAutoString absURI;
             rv = NS_MakeAbsoluteURI(absURI, valueStr, uri);

dom/html/HTMLFormElement.cpp

@@ -1485,7 +1485,7 @@ nsresult HTMLFormElement::GetActionURL(nsIURI** aActionURL,
 
     actionURL = docURI;
   } else {
-    nsCOMPtr<nsIURI> baseURL = GetBaseURI();
+    nsIURI* baseURL = GetBaseURI();
     NS_ASSERTION(baseURL, "No Base URL found in Form Submit!\n");
     if (!baseURL) {
       return NS_OK;  // No base URL -> exit early, see Bug 30721

dom/html/HTMLMenuElement.cpp

@@ -135,10 +135,9 @@ bool HTMLMenuElement::CanLoadIcon(nsIContent* aContent,
 
   Document* doc = aContent->OwnerDoc();
 
-  nsCOMPtr<nsIURI> baseURI = aContent->GetBaseURI();
   nsCOMPtr<nsIURI> uri;
   nsContentUtils::NewURIWithDocumentCharset(getter_AddRefs(uri), aIcon, doc,
-                                            baseURI);
+                                            aContent->GetBaseURI());
 
   if (!uri) {
     return false;

dom/html/HTMLScriptElement.cpp

@@ -186,9 +186,8 @@ void HTMLScriptElement::FreezeExecutionAttrs(Document* aOwnerDoc) {
   if (GetAttr(kNameSpaceID_None, nsGkAtoms::src, src)) {
     // Empty src should be treated as invalid URL.
     if (!src.IsEmpty()) {
-      nsCOMPtr<nsIURI> baseURI = GetBaseURI();
       nsContentUtils::NewURIWithDocumentCharset(getter_AddRefs(mUri), src,
-                                                OwnerDoc(), baseURI);
+                                                OwnerDoc(), GetBaseURI());
 
       if (!mUri) {
         AutoTArray<nsString, 2> params = {NS_LITERAL_STRING("src"), src};

dom/html/nsGenericHTMLElement.cpp

@@ -863,10 +863,9 @@ bool nsGenericHTMLElement::ParseBackgroundAttribute(int32_t aNamespaceID,
       aAttribute == nsGkAtoms::background && !aValue.IsEmpty()) {
     // Resolve url to an absolute url
     Document* doc = OwnerDoc();
-    nsCOMPtr<nsIURI> baseURI = GetBaseURI();
     nsCOMPtr<nsIURI> uri;
     nsresult rv = nsContentUtils::NewURIWithDocumentCharset(
-        getter_AddRefs(uri), aValue, doc, baseURI);
+        getter_AddRefs(uri), aValue, doc, GetBaseURI());
     if (NS_FAILED(rv)) {
       return false;
     }
@@ -2685,9 +2684,9 @@ nsresult nsGenericHTMLElement::NewURIFromString(const nsAString& aURISpec,
 
   nsCOMPtr<Document> doc = OwnerDoc();
 
-  nsCOMPtr<nsIURI> baseURI = GetBaseURI();
   nsresult rv =
-      nsContentUtils::NewURIWithDocumentCharset(aURI, aURISpec, doc, baseURI);
+      nsContentUtils::NewURIWithDocumentCharset(aURI, aURISpec, doc,
+                                                GetBaseURI());
   NS_ENSURE_SUCCESS(rv, rv);
 
   bool equal;

dom/mathml/nsMathMLElement.cpp

@@ -930,12 +930,11 @@ bool nsMathMLElement::IsLink(nsIURI** aURI) const {
   }
 
   if (hasHref) {
-    nsCOMPtr<nsIURI> baseURI = GetBaseURI();
     // Get absolute URI
     nsAutoString hrefStr;
     href->ToString(hrefStr);
     nsContentUtils::NewURIWithDocumentCharset(aURI, hrefStr, OwnerDoc(),
-                                              baseURI);
+                                              GetBaseURI());
     // must promise out param is non-null if we return true
     return !!*aURI;
   }

dom/svg/SVGAElement.cpp

@@ -276,12 +276,12 @@ bool SVGAElement::IsLink(nsIURI** aURI) const {
                       eCaseMatters) != Element::ATTR_VALUE_NO_MATCH &&
       FindAttrValueIn(kNameSpaceID_XLink, nsGkAtoms::actuate, sActuateVals,
                       eCaseMatters) != Element::ATTR_VALUE_NO_MATCH) {
-    nsCOMPtr<nsIURI> baseURI = GetBaseURI();
     // Get absolute URI
     nsAutoString str;
     const uint8_t idx = useBareHref ? HREF : XLINK_HREF;
     mStringAttributes[idx].GetAnimValue(str, this);
-    nsContentUtils::NewURIWithDocumentCharset(aURI, str, OwnerDoc(), baseURI);
+    nsContentUtils::NewURIWithDocumentCharset(aURI, str, OwnerDoc(),
+                                              GetBaseURI());
     // must promise out param is non-null if we return true
     return !!*aURI;
   }

dom/svg/SVGAnimationElement.cpp

@@ -356,9 +356,8 @@ bool SVGAnimationElement::IsEventAttributeNameInternal(nsAtom* aName) {
 
 void SVGAnimationElement::UpdateHrefTarget(const nsAString& aHrefStr) {
   nsCOMPtr<nsIURI> targetURI;
-  nsCOMPtr<nsIURI> baseURI = GetBaseURI();
   nsContentUtils::NewURIWithDocumentCharset(getter_AddRefs(targetURI), aHrefStr,
-                                            OwnerDoc(), baseURI);
+                                            OwnerDoc(), GetBaseURI());
   // Bug 1415044 to investigate which referrer we should use
   mHrefTarget.ResetToURIFragmentID(this, targetURI,
                                    OwnerDoc()->GetDocumentURI(),

dom/svg/SVGFEImageElement.cpp

@@ -59,7 +59,7 @@ SVGFEImageElement::~SVGFEImageElement() { DestroyImageLoadingContent(); }
 
 nsresult SVGFEImageElement::LoadSVGImage(bool aForce, bool aNotify) {
   // resolve href attribute
-  nsCOMPtr<nsIURI> baseURI = GetBaseURI();
+  nsIURI* baseURI = GetBaseURI();
 
   nsAutoString href;
   if (mStringAttributes[HREF].IsExplicitlySet()) {

dom/svg/SVGImageElement.cpp

@@ -128,7 +128,7 @@ already_AddRefed<Promise> SVGImageElement::Decode(ErrorResult& aRv) {
 
 nsresult SVGImageElement::LoadSVGImage(bool aForce, bool aNotify) {
   // resolve href attribute
-  nsCOMPtr<nsIURI> baseURI = GetBaseURI();
+  nsIURI* baseURI = GetBaseURI();
 
   nsAutoString href;
   if (mStringAttributes[HREF].IsExplicitlySet()) {

dom/svg/SVGMPathElement.cpp

@@ -191,9 +191,8 @@ SVGPathElement* SVGMPathElement::GetReferencedPath() {
 void SVGMPathElement::UpdateHrefTarget(nsIContent* aParent,
                                        const nsAString& aHrefStr) {
   nsCOMPtr<nsIURI> targetURI;
-  nsCOMPtr<nsIURI> baseURI = GetBaseURI();
   nsContentUtils::NewURIWithDocumentCharset(getter_AddRefs(targetURI), aHrefStr,
-                                            OwnerDoc(), baseURI);
+                                            OwnerDoc(), GetBaseURI());
 
   // Stop observing old target (if any)
   if (mPathTracker.get()) {

dom/svg/SVGScriptElement.cpp

@@ -129,8 +129,7 @@ void SVGScriptElement::FreezeExecutionAttrs(Document* aOwnerDoc) {
 
     // Empty src should be treated as invalid URL.
     if (!src.IsEmpty()) {
-      nsCOMPtr<nsIURI> baseURI = GetBaseURI();
-      NS_NewURI(getter_AddRefs(mUri), src, nullptr, baseURI);
+      NS_NewURI(getter_AddRefs(mUri), src, nullptr, GetBaseURI());
 
       if (!mUri) {
         AutoTArray<nsString, 2> params = {isHref

layout/generic/nsImageFrame.cpp

@@ -2415,7 +2415,7 @@ void nsImageFrame::GetDocumentCharacterSet(nsACString& aCharset) const {
 }
 
 void nsImageFrame::SpecToURI(const nsAString& aSpec, nsIURI** aURI) {
-  nsCOMPtr<nsIURI> baseURI;
+  nsIURI* baseURI = nullptr;
   if (mContent) {
     baseURI = mContent->GetBaseURI();
   }

layout/style/Loader.cpp

@@ -1007,7 +1007,7 @@ nsresult Loader::CreateSheet(nsIURI* aURI, nsIContent* aLinkingContent,
   if (!*aSheet) {
     aSheetState = eSheetNeedsParser;
     nsIURI* sheetURI;
-    nsCOMPtr<nsIURI> baseURI;
+    nsIURI* baseURI;
     nsIURI* originalURI;
     if (!aURI) {
       // Inline style.  Use the document's base URL so that @import in

layout/style/nsStyleStruct.cpp

@@ -119,8 +119,7 @@ already_AddRefed<nsIURI> StyleComputedUrl::ResolveLocalRef(nsIURI* aURI) const {
 
 already_AddRefed<nsIURI> StyleComputedUrl::ResolveLocalRef(
     const nsIContent* aContent) const {
-  nsCOMPtr<nsIURI> url = aContent->GetBaseURI();
-  return ResolveLocalRef(url);
+  return ResolveLocalRef(aContent->GetBaseURI());
 }
 
 imgRequestProxy* StyleComputedUrl::LoadImage(Document& aDocument) {

layout/svg/SVGObserverUtils.cpp

@@ -1372,9 +1372,9 @@ SVGGeometryElement* SVGObserverUtils::GetAndObserveTextPathsPath(
     }
 
     nsCOMPtr<nsIURI> targetURI;
-    nsCOMPtr<nsIURI> base = content->GetBaseURI();
-    nsContentUtils::NewURIWithDocumentCharset(
-        getter_AddRefs(targetURI), href, content->GetUncomposedDoc(), base);
+    nsContentUtils::NewURIWithDocumentCharset(getter_AddRefs(targetURI), href,
+                                              content->GetUncomposedDoc(),
+                                              content->GetBaseURI());
 
     // There's no clear refererer policy spec about non-CSS SVG resource
     // references Bug 1415044 to investigate which referrer we should use
@@ -1422,9 +1422,9 @@ nsIFrame* SVGObserverUtils::GetAndObserveTemplate(
     // Convert href to an nsIURI
     nsIContent* content = aFrame->GetContent();
     nsCOMPtr<nsIURI> targetURI;
-    nsCOMPtr<nsIURI> base = content->GetBaseURI();
-    nsContentUtils::NewURIWithDocumentCharset(
-        getter_AddRefs(targetURI), href, content->GetUncomposedDoc(), base);
+    nsContentUtils::NewURIWithDocumentCharset(getter_AddRefs(targetURI), href,
+                                              content->GetUncomposedDoc(),
+                                              content->GetBaseURI());
 
     // There's no clear refererer policy spec about non-CSS SVG resource
     // references.  Bug 1415044 to investigate which referrer we should use.
@@ -1457,10 +1457,10 @@ Element* SVGObserverUtils::GetAndObserveBackgroundImage(nsIFrame* aFrame,
   nsAutoString elementId =
       NS_LITERAL_STRING("#") + nsDependentAtomString(aHref);
   nsCOMPtr<nsIURI> targetURI;
-  nsCOMPtr<nsIURI> base = aFrame->GetContent()->GetBaseURI();
   nsContentUtils::NewURIWithDocumentCharset(
       getter_AddRefs(targetURI), elementId,
-      aFrame->GetContent()->GetUncomposedDoc(), base);
+      aFrame->GetContent()->GetUncomposedDoc(),
+      aFrame->GetContent()->GetBaseURI());
   RefPtr<URLAndReferrerInfo> url = new URLAndReferrerInfo(
       targetURI, aFrame->GetContent()->OwnerDoc()->GetDocumentURI(),
       aFrame->GetContent()->OwnerDoc()->GetReferrerPolicy());

layout/xul/nsImageBoxFrame.cpp

@@ -238,10 +238,9 @@ void nsImageBoxFrame::UpdateImage() {
           mContent, getter_AddRefs(triggeringPrincipal), contentPolicyType,
           &requestContextID);
 
-      nsCOMPtr<nsIURI> baseURI = mContent->GetBaseURI();
       nsCOMPtr<nsIURI> uri;
       nsContentUtils::NewURIWithDocumentCharset(getter_AddRefs(uri), src, doc,
-                                                baseURI);
+                                                mContent->GetBaseURI());
       if (uri) {
         nsresult rv = nsContentUtils::LoadImage(
             uri, mContent, doc, triggeringPrincipal, requestContextID,

layout/xul/tree/nsTreeBodyFrame.cpp

@@ -1913,11 +1913,9 @@ nsresult nsTreeBodyFrame::GetImage(int32_t aRowIndex, nsTreeColumn* aCol,
       styleRequest->SyncClone(imgNotificationObserver, doc,
                               getter_AddRefs(imageRequest));
     } else {
-      nsCOMPtr<nsIURI> baseURI = mContent->GetBaseURI();
-
       nsCOMPtr<nsIURI> srcURI;
-      nsContentUtils::NewURIWithDocumentCharset(getter_AddRefs(srcURI),
-                                                imageSrc, doc, baseURI);
+      nsContentUtils::NewURIWithDocumentCharset(
+          getter_AddRefs(srcURI), imageSrc, doc, mContent->GetBaseURI());
       if (!srcURI) return NS_ERROR_FAILURE;
 
       // XXXbz what's the origin principal for this stuff that comes from our