Bug 1331322 - Allow tagging of pseudo-implementing native anonymous content with the pseudo type at creation time

* Stop using a node bit for HasExplicitBaseURI
* Move MAY_HAVE_CLASS to mBoolFlags
* Add a flag to indicate that a node is native anonymous content
* Allow tagging of pseudo-implementing native anonymous content with the pseudo type at creation time, and eliminate explicit style contexts in nsIAnonymousContentCreator::ContentInfo

Tag #1375

7 files changed, 20 insertions, 73 deletions

diff --git a/layout/forms/nsColorControlFrame.cpp b/layout/forms/nsColorControlFrame.cpp
index e0bae43a98..63aee814aa 100644
--- a/layout/forms/nsColorControlFrame.cpp
+++ b/layout/forms/nsColorControlFrame.cpp
@@ -67,6 +67,7 @@ nsColorControlFrame::CreateAnonymousContent(nsTArray<ContentInfo>& aElements)
 {
   nsCOMPtr<nsIDocument> doc = mContent->GetComposedDoc();
   mColorContent = doc->CreateHTMLElement(nsGkAtoms::div);
+  mColorContent->SetPseudoElementType(CSSPseudoElementType::mozColorSwatch);
 
   // Mark the element to be native anonymous before setting any attributes.
   mColorContent->SetIsNativeAnonymousRoot();
@@ -74,11 +75,7 @@ nsColorControlFrame::CreateAnonymousContent(nsTArray<ContentInfo>& aElements)
   nsresult rv = UpdateColor();
   NS_ENSURE_SUCCESS(rv, rv);
 
-  CSSPseudoElementType pseudoType = CSSPseudoElementType::mozColorSwatch;
-  RefPtr<nsStyleContext> newStyleContext = PresContext()->StyleSet()->
-    ResolvePseudoElementStyle(mContent->AsElement(), pseudoType,
-                              StyleContext(), mColorContent->AsElement());
-  if (!aElements.AppendElement(ContentInfo(mColorContent, newStyleContext))) {
+  if (!aElements.AppendElement(mColorContent)) {
     return NS_ERROR_OUT_OF_MEMORY;
   }
 
diff --git a/layout/forms/nsMeterFrame.cpp b/layout/forms/nsMeterFrame.cpp
index 1f3bd8022a..6ef362820f 100644
--- a/layout/forms/nsMeterFrame.cpp
+++ b/layout/forms/nsMeterFrame.cpp
@@ -75,14 +75,9 @@ nsMeterFrame::CreateAnonymousContent(nsTArray<ContentInfo>& aElements)
   mBarDiv = doc->CreateHTMLElement(nsGkAtoms::div);
 
   // Associate ::-moz-meter-bar pseudo-element to the anonymous child.
-  CSSPseudoElementType pseudoType = CSSPseudoElementType::mozMeterBar;
-  RefPtr<nsStyleContext> newStyleContext = PresContext()->StyleSet()->
-    ResolvePseudoElementStyle(mContent->AsElement(), pseudoType,
-                              StyleContext(), mBarDiv->AsElement());
+  mBarDiv->SetPseudoElementType(CSSPseudoElementType::mozMeterBar);
 
-  if (!aElements.AppendElement(ContentInfo(mBarDiv, newStyleContext))) {
-    return NS_ERROR_OUT_OF_MEMORY;
-  }
+  aElements.AppendElement(mBarDiv);
 
   return NS_OK;
 }
diff --git a/layout/forms/nsNumberControlFrame.cpp b/layout/forms/nsNumberControlFrame.cpp
index 9724109cb1..64e3df0fe3 100644
--- a/layout/forms/nsNumberControlFrame.cpp
+++ b/layout/forms/nsNumberControlFrame.cpp
@@ -325,27 +325,15 @@ nsresult
 nsNumberControlFrame::MakeAnonymousElement(Element** aResult,
                                            nsTArray<ContentInfo>& aElements,
                                            nsIAtom* aTagName,
-                                           CSSPseudoElementType aPseudoType,
-                                           nsStyleContext* aParentContext)
+                                           CSSPseudoElementType aPseudoType)
 {
   // Get the NodeInfoManager and tag necessary to create the anonymous divs.
   nsCOMPtr<nsIDocument> doc = mContent->GetComposedDoc();
   RefPtr<Element> resultElement = doc->CreateHTMLElement(aTagName);
+  resultElement->SetPseudoElementType(aPseudoType);
 
-  // If we legitimately fail this assertion and need to allow
-  // non-pseudo-element anonymous children, then we'll need to add a branch
-  // that calls ResolveStyleFor((*aResult)->AsElement(), aParentContext)") to
-  // set newStyleContext.
-  NS_ASSERTION(aPseudoType != CSSPseudoElementType::NotPseudo,
-               "Expecting anonymous children to all be pseudo-elements");
   // Associate the pseudo-element with the anonymous child
-  RefPtr<nsStyleContext> newStyleContext =
-    PresContext()->StyleSet()->ResolvePseudoElementStyle(mContent->AsElement(),
-                                                         aPseudoType,
-                                                         aParentContext,
-                                                         resultElement);
-
-  if (!aElements.AppendElement(ContentInfo(resultElement, newStyleContext))) {
+  if (!aElements.AppendElement(resultElement)) {
     return NS_ERROR_OUT_OF_MEMORY;
   }
 
@@ -382,8 +370,7 @@ nsNumberControlFrame::CreateAnonymousContent(nsTArray<ContentInfo>& aElements)
   rv = MakeAnonymousElement(getter_AddRefs(mOuterWrapper),
                             aElements,
                             nsGkAtoms::div,
-                            CSSPseudoElementType::mozNumberWrapper,
-                            mStyleContext);
+                            CSSPseudoElementType::mozNumberWrapper);
   NS_ENSURE_SUCCESS(rv, rv);
 
   ContentInfo& outerWrapperCI = aElements.LastElement();
@@ -392,8 +379,7 @@ nsNumberControlFrame::CreateAnonymousContent(nsTArray<ContentInfo>& aElements)
   rv = MakeAnonymousElement(getter_AddRefs(mTextField),
                             outerWrapperCI.mChildren,
                             nsGkAtoms::input,
-                            CSSPseudoElementType::mozNumberText,
-                            outerWrapperCI.mStyleContext);
+                            CSSPseudoElementType::mozNumberText);
   NS_ENSURE_SUCCESS(rv, rv);
 
   mTextField->SetAttr(kNameSpaceID_None, nsGkAtoms::type,
@@ -442,8 +428,7 @@ nsNumberControlFrame::CreateAnonymousContent(nsTArray<ContentInfo>& aElements)
   rv = MakeAnonymousElement(getter_AddRefs(mSpinBox),
                             outerWrapperCI.mChildren,
                             nsGkAtoms::div,
-                            CSSPseudoElementType::mozNumberSpinBox,
-                            outerWrapperCI.mStyleContext);
+                            CSSPseudoElementType::mozNumberSpinBox);
   NS_ENSURE_SUCCESS(rv, rv);
 
   ContentInfo& spinBoxCI = outerWrapperCI.mChildren.LastElement();
@@ -452,16 +437,14 @@ nsNumberControlFrame::CreateAnonymousContent(nsTArray<ContentInfo>& aElements)
   rv = MakeAnonymousElement(getter_AddRefs(mSpinUp),
                             spinBoxCI.mChildren,
                             nsGkAtoms::div,
-                            CSSPseudoElementType::mozNumberSpinUp,
-                            spinBoxCI.mStyleContext);
+                            CSSPseudoElementType::mozNumberSpinUp);
   NS_ENSURE_SUCCESS(rv, rv);
 
   // Create the ::-moz-number-spin-down pseudo-element:
   rv = MakeAnonymousElement(getter_AddRefs(mSpinDown),
                             spinBoxCI.mChildren,
                             nsGkAtoms::div,
-                            CSSPseudoElementType::mozNumberSpinDown,
-                            spinBoxCI.mStyleContext);
+                            CSSPseudoElementType::mozNumberSpinDown);
 
   return rv;
 }
diff --git a/layout/forms/nsNumberControlFrame.h b/layout/forms/nsNumberControlFrame.h
index 47e32ad65a..5396e71703 100644
--- a/layout/forms/nsNumberControlFrame.h
+++ b/layout/forms/nsNumberControlFrame.h
@@ -170,8 +170,7 @@ private:
   nsresult MakeAnonymousElement(Element** aResult,
                                 nsTArray<ContentInfo>& aElements,
                                 nsIAtom* aTagName,
-                                CSSPseudoElementType aPseudoType,
-                                nsStyleContext* aParentContext);
+                                CSSPseudoElementType aPseudoType);
 
   class SyncDisabledStateEvent;
   friend class SyncDisabledStateEvent;
diff --git a/layout/forms/nsProgressFrame.cpp b/layout/forms/nsProgressFrame.cpp
index 2445defd35..6d6db7a1fd 100644
--- a/layout/forms/nsProgressFrame.cpp
+++ b/layout/forms/nsProgressFrame.cpp
@@ -72,12 +72,9 @@ nsProgressFrame::CreateAnonymousContent(nsTArray<ContentInfo>& aElements)
   mBarDiv = doc->CreateHTMLElement(nsGkAtoms::div);
 
   // Associate ::-moz-progress-bar pseudo-element to the anonymous child.
-  CSSPseudoElementType pseudoType = CSSPseudoElementType::mozProgressBar;
-  RefPtr<nsStyleContext> newStyleContext = PresContext()->StyleSet()->
-    ResolvePseudoElementStyle(mContent->AsElement(), pseudoType,
-                              StyleContext(), mBarDiv->AsElement());
+  mBarDiv->SetPseudoElementType(CSSPseudoElementType::mozProgressBar);
 
-  if (!aElements.AppendElement(ContentInfo(mBarDiv, newStyleContext))) {
+  if (!aElements.AppendElement(mBarDiv)) {
     return NS_ERROR_OUT_OF_MEMORY;
   }
 
diff --git a/layout/forms/nsRangeFrame.cpp b/layout/forms/nsRangeFrame.cpp
index 7590da066e..99faa6043b 100644
--- a/layout/forms/nsRangeFrame.cpp
+++ b/layout/forms/nsRangeFrame.cpp
@@ -119,13 +119,9 @@ nsRangeFrame::MakeAnonymousDiv(Element** aResult,
   RefPtr<Element> resultElement = doc->CreateHTMLElement(nsGkAtoms::div);
 
   // Associate the pseudo-element with the anonymous child.
-  RefPtr<nsStyleContext> newStyleContext =
-    PresContext()->StyleSet()->ResolvePseudoElementStyle(mContent->AsElement(),
-                                                         aPseudoType,
-                                                         StyleContext(),
-                                                         resultElement);
+  resultElement->SetPseudoElementType(aPseudoType);
 
-  if (!aElements.AppendElement(ContentInfo(resultElement, newStyleContext))) {
+  if (!aElements.AppendElement(resultElement)) {
     return NS_ERROR_OUT_OF_MEMORY;
   }
 
diff --git a/layout/forms/nsTextControlFrame.cpp b/layout/forms/nsTextControlFrame.cpp
index f8fdf3420a..aa3185d39a 100644
--- a/layout/forms/nsTextControlFrame.cpp
+++ b/layout/forms/nsTextControlFrame.cpp
@@ -352,32 +352,12 @@ nsTextControlFrame::CreateAnonymousContent(nsTArray<ContentInfo>& aElements)
 
   // Create the placeholder anonymous content if needed.
   if (mUsePlaceholder) {
-    nsIContent* placeholderNode = txtCtrl->CreatePlaceholderNode();
+    Element* placeholderNode = txtCtrl->CreatePlaceholderNode();
     NS_ENSURE_TRUE(placeholderNode, NS_ERROR_OUT_OF_MEMORY);
 
     // Associate ::placeholder pseudo-element with the placeholder node.
-    CSSPseudoElementType pseudoType = CSSPseudoElementType::placeholder;
-
-    // If this is a text input inside a number input then we want to use the
-    // main number input as the source of style for the placeholder frame.
-    nsIFrame* mainInputFrame = this;
-    if (StyleContext()->GetPseudoType() == CSSPseudoElementType::mozNumberText) {
-      do {
-        mainInputFrame = mainInputFrame->GetParent();
-      } while (mainInputFrame &&
-               mainInputFrame->GetType() != nsGkAtoms::numberControlFrame);
-      MOZ_ASSERT(mainInputFrame);
-    }
-
-    RefPtr<nsStyleContext> placeholderStyleContext =
-      PresContext()->StyleSet()->ResolvePseudoElementStyle(
-          mainInputFrame->GetContent()->AsElement(), pseudoType, StyleContext(),
-          placeholderNode->AsElement());
-
-    if (!aElements.AppendElement(ContentInfo(placeholderNode,
-                                 placeholderStyleContext))) {
-      return NS_ERROR_OUT_OF_MEMORY;
-    }
+    placeholderNode->SetPseudoElementType(CSSPseudoElementType::placeholder);
+    aElements.AppendElement(placeholderNode);
 
     if (!IsSingleLineTextControl()) {
       // For textareas, UpdateValueDisplay doesn't initialize the visibility