17809 r=av the sun c++ 5.0 compiler's version of strchr returns const char*

This fix is needed in order to be able to build with this compiler


git-svn-id: svn://10.0.0.236/trunk@53378 18797224-902f-48f8-a5cc-f745e15eee43

mozilla/modules/plugin/base/src/nsPluginHostImpl.cpp

@@ -1762,7 +1762,7 @@ static int CompareExtensions(const char *aExtensionList, const char *aExtension)
     return -1;
 
   const char *pExt = aExtensionList;
-  char *pComma = strchr(pExt, ',');
+  const char *pComma = strchr(pExt, ',');
 
   if(pComma == nsnull)
     return strcmp(pExt, aExtension);