Introduce a SVGUnknownElement class for unknown SVG elements

Source/core/scripts/make_names.pl

Index: Source/core/scripts/make_names.pl
diff --git a/Source/core/scripts/make_names.pl b/Source/core/scripts/make_names.pl
index 276e45f48305835bad0163be4004902381c7a5fe..4a93c848755e6f67d3e9212ff41478b0ee820c20 100755
--- a/Source/core/scripts/make_names.pl
+++ b/Source/core/scripts/make_names.pl
@@ -115,6 +115,7 @@ die "You must specify a namespace (e.g. SVG) for <namespace>Names.h" unless $par
 die "You must specify a namespaceURI (e.g. http://www.w3.org/2000/svg)" unless $parameters{namespaceURI};
 
 $parameters{namespacePrefix} = $parameters{namespace} unless $parameters{namespacePrefix};
+$parameters{fallbackJSInterfaceName} = $parameters{fallbackInterfaceName} unless $parameters{fallbackJSInterfaceName};
 
 my $namesBasePath = "$outputDir/$parameters{namespace}Names";
 my $factoryBasePath = "$outputDir/$parameters{namespace}ElementFactory";
@@ -159,7 +160,8 @@ sub defaultParametersHash
         'guardFactoryWith' => '',
         'tagsNullNamespace' => 0,
         'attrsNullNamespace' => 0,
-        'fallbackInterfaceName' => ''
+        'fallbackInterfaceName' => '',
+        'fallbackJSInterfaceName' => ''
     );
 }
 
@@ -690,7 +692,7 @@ sub printJSElementIncludes
 
         print F "#include \"V8${JSInterfaceName}.h\"\n";
     }
-    print F "#include \"V8$parameters{fallbackInterfaceName}.h\"\n";
+    print F "#include \"V8$parameters{fallbackJSInterfaceName}.h\"\n";
 }
 
 sub printElementIncludes
@@ -966,7 +968,7 @@ sub printWrapperFunctions
     for my $tagName (sort keys %enabledTags) {
         # Avoid defining the same wrapper method twice.
         my $JSInterfaceName = $enabledTags{$tagName}{JSInterfaceName};
-        next if defined($tagsSeen{$JSInterfaceName}) || (usesDefaultJSWrapper($tagName) && ($parameters{fallbackInterfaceName} eq $parameters{namespace} . "Element"));
+        next if defined($tagsSeen{$JSInterfaceName}) || (usesDefaultJSWrapper($tagName) && ($parameters{fallbackJSInterfaceName} eq $parameters{namespace} . "Element"));
         $tagsSeen{$JSInterfaceName} = 1;
 
         my $conditional = $enabledTags{$tagName}{conditional};
@@ -1096,7 +1098,7 @@ END
 
     for my $tag (sort keys %enabledTags) {
         # Do not add the name to the map if it does not have a JS wrapper constructor or uses the default wrapper.
-        next if (usesDefaultJSWrapper($tag, \%enabledTags) && ($parameters{fallbackInterfaceName} eq $parameters{namespace} . "Element"));
+        next if (usesDefaultJSWrapper($tag, \%enabledTags) && ($parameters{fallbackJSInterfaceName} eq $parameters{namespace} . "Element"));
 
         my $conditional = $enabledTags{$tag}{conditional};
         if ($conditional) {
@@ -1203,7 +1205,7 @@ sub printWrapperFactoryHeaderFile
 
     print F <<END
 #include <V8$parameters{namespace}Element.h>
-#include <V8$parameters{fallbackInterfaceName}.h>
+#include <V8$parameters{fallbackJSInterfaceName}.h>
 #include <v8.h>
 
 namespace WebCore {
@@ -1216,9 +1218,9 @@ namespace WebCore {
     {
         return V8$parameters{namespace}Element::createWrapper(element, creationContext, isolate);
     }
-    inline v8::Handle<v8::Object> createV8$parameters{namespace}FallbackWrapper($parameters{fallbackInterfaceName}* element, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate)
+    inline v8::Handle<v8::Object> createV8$parameters{namespace}FallbackWrapper($parameters{fallbackJSInterfaceName}* element, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate)
     {
-        return V8$parameters{fallbackInterfaceName}::createWrapper(element, creationContext, isolate);
+        return V8$parameters{fallbackJSInterfaceName}::createWrapper(element, creationContext, isolate);
     }
 }
 END