Bug 562688 part 12. Eliminate eELEMENT usage in the rest of layout except layout/style. r=dbaron

layout/forms/nsButtonFrameRenderer.cpp

@@ -368,13 +368,13 @@ nsButtonFrameRenderer::ReResolveStyles(nsPresContext* aPresContext)
 
   // style for the inner such as a dotted line (Windows)
   mInnerFocusStyle =
-    styleSet->ProbePseudoElementStyle(mFrame->GetContent(),
+    styleSet->ProbePseudoElementStyle(mFrame->GetContent()->AsElement(),
                                       nsCSSPseudoElements::ePseudo_mozFocusInner,
                                       context);
 
   // style for outer focus like a ridged border (MAC).
   mOuterFocusStyle =
-    styleSet->ProbePseudoElementStyle(mFrame->GetContent(),
+    styleSet->ProbePseudoElementStyle(mFrame->GetContent()->AsElement(),
                                       nsCSSPseudoElements::ePseudo_mozFocusOuter,
                                       context);
 }

layout/forms/nsListControlFrame.cpp

@@ -338,8 +338,7 @@ void nsListControlFrame::PaintFocus(nsIRenderingContext& aRC, nsPoint aPt)
       // Failing all else, try the first thing we have, but only if
       // it's an element.  Text frames need not apply.
       childframe = containerFrame->GetFirstChild(nsnull);
-      if (childframe &&
-          !childframe->GetContent()->IsNodeOfType(nsINode::eELEMENT)) {
+      if (childframe && !childframe->GetContent()->IsElement()) {
         childframe = nsnull;
       }
       result = NS_OK;

layout/mathml/nsMathMLFrame.cpp

@@ -169,7 +169,8 @@ nsMathMLFrame::ResolveMathMLCharStyle(nsPresContext*  aPresContext,
     nsCSSPseudoElements::ePseudo_mozMathAnonymous; // savings
   nsRefPtr<nsStyleContext> newStyleContext;
   newStyleContext = aPresContext->StyleSet()->
-    ResolvePseudoElementStyle(aContent, pseudoType, aParentStyleContext);
+    ResolvePseudoElementStyle(aContent->AsElement(), pseudoType,
+                              aParentStyleContext);
 
   if (newStyleContext)
     aMathMLChar->SetStyleContext(newStyleContext);

layout/mathml/nsMathMLmactionFrame.cpp

@@ -144,7 +144,7 @@ nsMathMLmactionFrame::Init(nsIContent*      aContent,
         // then, re-resolve our style
         nsStyleContext* parentStyleContext = GetStyleContext()->GetParent();
         newStyleContext = PresContext()->StyleSet()->
-          ResolveStyleFor(aContent, parentStyleContext);
+          ResolveStyleFor(aContent->AsElement(), parentStyleContext);
 
         if (!newStyleContext) 
           mRestyle.Truncate();

layout/svg/base/src/nsSVGEffects.cpp

@@ -407,7 +407,7 @@ nsSVGEffects::EffectProperties::GetMaskFrame(PRBool *aOK)
 void
 nsSVGEffects::UpdateEffects(nsIFrame *aFrame)
 {
-  NS_ASSERTION(aFrame->GetContent()->IsNodeOfType(nsINode::eELEMENT),
+  NS_ASSERTION(aFrame->GetContent()->IsElement(),
                "aFrame's content should be an element");
 
   FrameProperties props = aFrame->Properties();
@@ -438,7 +438,7 @@ nsSVGEffects::UpdateEffects(nsIFrame *aFrame)
 
   nsIFrame *kid = aFrame->GetFirstChild(nsnull);
   while (kid) {
-    if (kid->GetContent()->IsNodeOfType(nsINode::eELEMENT)) {
+    if (kid->GetContent()->IsElement()) {
       UpdateEffects(kid);
     }
     kid = kid->GetNextSibling();

layout/svg/base/src/nsSVGUtils.cpp

@@ -543,7 +543,7 @@ nsSVGUtils::GetCTM(nsSVGElement *aElement, PRBool aScreenCTM)
     // didn't find a nearestViewportElement
     return gfxMatrix(0.0, 0.0, 0.0, 0.0, 0.0, 0.0); // singular
   }
-  if (!ancestor || !ancestor->IsNodeOfType(nsINode::eELEMENT)) {
+  if (!ancestor || !ancestor->IsElement()) {
     return matrix;
   }
   if (ancestor->GetNameSpaceID() == kNameSpaceID_SVG) {

layout/xul/base/src/nsListBoxBodyFrame.cpp

@@ -717,7 +717,7 @@ nsListBoxBodyFrame::ComputeIntrinsicWidth(nsBoxLayoutState& aBoxLayoutState)
     nsRefPtr<nsStyleContext> styleContext;
     nsPresContext *presContext = aBoxLayoutState.PresContext();
     styleContext = presContext->StyleSet()->
-      ResolveStyleFor(firstRowContent, nsnull);
+      ResolveStyleFor(firstRowContent->AsElement(), nsnull);
 
     nscoord width = 0;
     nsMargin margin(0,0,0,0);

layout/xul/base/src/nsSplitterFrame.cpp

@@ -338,7 +338,7 @@ nsSplitterFrame::Init(nsIContent*      aContent,
                           NS_LITERAL_STRING("vertical"), PR_FALSE);
         nsStyleContext* parentStyleContext = GetStyleContext()->GetParent();
         nsRefPtr<nsStyleContext> newContext = PresContext()->StyleSet()->
-          ResolveStyleFor(aContent, parentStyleContext);
+          ResolveStyleFor(aContent->AsElement(), parentStyleContext);
         SetStyleContextWithoutNotification(newContext);
       }
     }

layout/xul/base/src/tree/src/nsTreeBoxObject.cpp

@@ -104,7 +104,7 @@ static void FindBodyElement(nsIContent* aParent, nsIContent** aResult)
       // There are nesting tree elements. Only the innermost should
       // find the treechilren.
       break;
-    } else if (content->IsNodeOfType(nsINode::eELEMENT) &&
+    } else if (content->IsElement() &&
                !ni->Equals(nsGkAtoms::_template, kNameSpaceID_XUL)) {
       FindBodyElement(content, aResult);
       if (*aResult)

layout/xul/base/src/tree/src/nsTreeStyleCache.cpp

@@ -101,7 +101,7 @@ nsTreeStyleCache::GetStyleContext(nsICSSPseudoComparator* aComparator,
   if (!result) {
     // We missed the cache. Resolve this pseudo-style.
     result = aPresContext->StyleSet()->
-      ResolveXULTreePseudoStyle(aContent, aPseudoElement,
+      ResolveXULTreePseudoStyle(aContent->AsElement(), aPseudoElement,
                                 aContext, aComparator).get();
 
     // Put the style context in our table, transferring the owning reference to the table.