making string conversions explicit

netwerk/protocol/about/src/nsAboutBlank.cpp

@@ -38,7 +38,7 @@ nsAboutBlank::NewChannel(nsIURI *aURI, nsIChannel **result)
     nsresult rv;
     nsIChannel* channel;
     nsISupports* s;
-    rv = NS_NewStringInputStream(&s, kBlankPage);
+    rv = NS_NewCStringInputStream(&s, kBlankPage);
     if (NS_FAILED(rv)) return rv;
     nsIInputStream* in;
 

netwerk/protocol/about/src/nsAboutBloat.cpp

@@ -73,7 +73,7 @@ nsAboutBloat::NewChannel(nsIURI *aURI, nsIChannel **result)
 
         nsCOMPtr<nsISupports> s;
         const char* msg = "Bloat statistics cleared.";
-        rv = NS_NewStringInputStream(getter_AddRefs(s), msg);
+        rv = NS_NewCStringInputStream(getter_AddRefs(s), msg);
         if (NS_FAILED(rv)) return rv;
 
         size = nsCRT::strlen(msg);
@@ -87,7 +87,7 @@ nsAboutBloat::NewChannel(nsIURI *aURI, nsIChannel **result)
     	
         nsCOMPtr<nsISupports> s;
         const char* msg = "Memory leaks dumped.";
-        rv = NS_NewStringInputStream(getter_AddRefs(s), msg);
+        rv = NS_NewCStringInputStream(getter_AddRefs(s), msg);
         if (NS_FAILED(rv)) return rv;
 
         size = nsCRT::strlen(msg);

netwerk/protocol/about/src/nsAboutProtocolHandler.cpp

@@ -130,13 +130,14 @@ nsAboutProtocolHandler::NewChannel(nsIURI* uri, nsIChannel* *result)
     if (NS_FAILED(rv)) return rv;
     
     // look up a handler to deal with "whatStr"
-    nsAutoString progID(NS_ABOUT_MODULE_PROGID_PREFIX);
-    nsAutoString what(whatStr);
+    nsAutoString progID; progID.AssignWithConversion(NS_ABOUT_MODULE_PROGID_PREFIX);
+    nsAutoString what; what.AssignWithConversion(whatStr);
     nsCRT::free(whatStr);
 
     // only take up to a question-mark if there is one:
     PRInt32 amt = what.Find("?");
-    progID.Append(what, amt);   // if amt == -1, take it all
+      // STRING USE WARNING: this use needs to be examined -- scc
+    progID.Append(what.GetUnicode(), amt);   // if amt == -1, take it all
     
     char* progIDStr = progID.ToNewCString();
     if (progIDStr == nsnull)