Add a nsHTMLUnknownElement class for LAYER, ILAYER, NOLAYER and unknown elements, this element is a normal element except that it doesn't do inline style processing. This fixes M15 bug #22260.

content/html/content/src/Makefile.in

@@ -95,6 +95,7 @@ CPPSRCS		= \
 		nsHTMLTextAreaElement.cpp \
 		nsHTMLTitleElement.cpp \
 		nsHTMLUListElement.cpp \
+		nsHTMLUnknownElement.cpp \
 		nsHTMLWBRElement.cpp \
 		$(NULL)
 

content/html/content/src/makefile.win

@@ -93,6 +93,7 @@ CPPSRCS=				\
 	nsHTMLTextAreaElement.cpp	\
 	nsHTMLTitleElement.cpp		\
 	nsHTMLUListElement.cpp		\
+	nsHTMLUnknownElement.cpp	\
 	nsHTMLWBRElement.cpp		\
 	$(NULL)
 
@@ -160,6 +161,7 @@ CPP_OBJS=						\
 	.\$(OBJDIR)\nsHTMLTextAreaElement.obj		\
 	.\$(OBJDIR)\nsHTMLTitleElement.obj		\
 	.\$(OBJDIR)\nsHTMLUListElement.obj		\
+	.\$(OBJDIR)\nsHTMLUnknownElement.obj		\
 	.\$(OBJDIR)\nsHTMLWBRElement.obj		\
 	$(NULL)
 

content/html/document/src/nsHTMLContentSink.cpp

@@ -743,7 +743,6 @@ MakeContentObject(nsHTMLTag aNodeType,
   case eHTMLTag_div:
   case eHTMLTag_noembed:
   case eHTMLTag_noframes:
-  case eHTMLTag_nolayer:
   case eHTMLTag_noscript:
   case eHTMLTag_parsererror:
   case eHTMLTag_sourcetext:
@@ -905,6 +904,13 @@ MakeContentObject(nsHTMLTag aNodeType,
   case eHTMLTag_wbr:
     rv = NS_NewHTMLWBRElement(aResult, aAtom);
     break;
+  case eHTMLTag_layer:
+  case eHTMLTag_ilayer:
+  case eHTMLTag_nolayer:
+  case eHTMLTag_unknown:
+  case eHTMLTag_userdefined:
+    rv = NS_NewHTMLUnknownElement(aResult, aAtom);
+    break;
   }
 
   return rv;

layout/generic/nsHTMLParts.h

@@ -239,6 +239,9 @@ NS_NewHTMLUListElement(nsIHTMLContent** aResult, nsIAtom* aTag);
 extern nsresult
 NS_NewHTMLWBRElement(nsIHTMLContent** aResult, nsIAtom* aTag);
 
+extern nsresult
+NS_NewHTMLUnknownElement(nsIHTMLContent** aResult, nsIAtom* aTag);
+
 /**
  * Create a new content object for the given tag.
  * Returns NS_ERROR_NOT_AVAILABLE for an unknown/unhandled tag.

layout/html/base/src/nsHTMLParts.h

@@ -239,6 +239,9 @@ NS_NewHTMLUListElement(nsIHTMLContent** aResult, nsIAtom* aTag);
 extern nsresult
 NS_NewHTMLWBRElement(nsIHTMLContent** aResult, nsIAtom* aTag);
 
+extern nsresult
+NS_NewHTMLUnknownElement(nsIHTMLContent** aResult, nsIAtom* aTag);
+
 /**
  * Create a new content object for the given tag.
  * Returns NS_ERROR_NOT_AVAILABLE for an unknown/unhandled tag.

layout/html/content/src/Makefile.in

@@ -95,6 +95,7 @@ CPPSRCS		= \
 		nsHTMLTextAreaElement.cpp \
 		nsHTMLTitleElement.cpp \
 		nsHTMLUListElement.cpp \
+		nsHTMLUnknownElement.cpp \
 		nsHTMLWBRElement.cpp \
 		$(NULL)
 

layout/html/content/src/makefile.win

@@ -93,6 +93,7 @@ CPPSRCS=				\
 	nsHTMLTextAreaElement.cpp	\
 	nsHTMLTitleElement.cpp		\
 	nsHTMLUListElement.cpp		\
+	nsHTMLUnknownElement.cpp	\
 	nsHTMLWBRElement.cpp		\
 	$(NULL)
 
@@ -160,6 +161,7 @@ CPP_OBJS=						\
 	.\$(OBJDIR)\nsHTMLTextAreaElement.obj		\
 	.\$(OBJDIR)\nsHTMLTitleElement.obj		\
 	.\$(OBJDIR)\nsHTMLUListElement.obj		\
+	.\$(OBJDIR)\nsHTMLUnknownElement.obj		\
 	.\$(OBJDIR)\nsHTMLWBRElement.obj		\
 	$(NULL)
 

layout/html/document/src/nsHTMLContentSink.cpp

@@ -743,7 +743,6 @@ MakeContentObject(nsHTMLTag aNodeType,
   case eHTMLTag_div:
   case eHTMLTag_noembed:
   case eHTMLTag_noframes:
-  case eHTMLTag_nolayer:
   case eHTMLTag_noscript:
   case eHTMLTag_parsererror:
   case eHTMLTag_sourcetext:
@@ -905,6 +904,13 @@ MakeContentObject(nsHTMLTag aNodeType,
   case eHTMLTag_wbr:
     rv = NS_NewHTMLWBRElement(aResult, aAtom);
     break;
+  case eHTMLTag_layer:
+  case eHTMLTag_ilayer:
+  case eHTMLTag_nolayer:
+  case eHTMLTag_unknown:
+  case eHTMLTag_userdefined:
+    rv = NS_NewHTMLUnknownElement(aResult, aAtom);
+    break;
   }
 
   return rv;