remove calls to deprecated string methods

content/xml/document/src/nsXMLContentSink.cpp

@@ -1691,7 +1691,7 @@ nsXMLContentSink::ProcessEndSCRIPTTag(const nsIParserNode& aNode)
   nsresult result = NS_OK;
   if (mInScript) {
     nsAutoString script;
-    script.SetString(mText, mTextLength);
+    script.Assign(mText, mTextLength);
     result = EvaluateScript(script, mScriptLineNo, mScriptLanguageVersion);
     FlushText(PR_FALSE);
     mInScript = PR_FALSE;

content/xml/document/src/nsXMLDocument.cpp

@@ -230,7 +230,7 @@ NS_IMETHODIMP
 nsXMLDocument::GetContentType(nsString& aContentType) const
 {
   // XXX Should get document type from incoming stream
-  aContentType.SetString("text/xml");
+  aContentType.Assign("text/xml");
   return NS_OK;
 }
 

layout/xml/document/src/nsXMLContentSink.cpp

@@ -1691,7 +1691,7 @@ nsXMLContentSink::ProcessEndSCRIPTTag(const nsIParserNode& aNode)
   nsresult result = NS_OK;
   if (mInScript) {
     nsAutoString script;
-    script.SetString(mText, mTextLength);
+    script.Assign(mText, mTextLength);
     result = EvaluateScript(script, mScriptLineNo, mScriptLanguageVersion);
     FlushText(PR_FALSE);
     mInScript = PR_FALSE;

layout/xml/document/src/nsXMLDocument.cpp

@@ -230,7 +230,7 @@ NS_IMETHODIMP
 nsXMLDocument::GetContentType(nsString& aContentType) const
 {
   // XXX Should get document type from incoming stream
-  aContentType.SetString("text/xml");
+  aContentType.Assign("text/xml");
   return NS_OK;
 }