Fixed: FileSystem;:Write should take an istream instance for input, not ostream

src/Utils.h

Index: src/Utils.h
===================================================================
--- a/src/Utils.h
+++ b/src/Utils.h
@@ -13,26 +13,28 @@
  *
  * You should have received a copy of the GNU General Public License
  * along with Adblock Plus.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 #ifndef ADBLOCK_PLUS_UTILS_H
 #define ADBLOCK_PLUS_UTILS_H
 
-#include <v8.h>
 #include <algorithm>
 #include <cctype>
 #include <functional>
+#include <istream>
+#include <string>
+#include <v8.h>
 
 namespace AdblockPlus
 {
   namespace Utils
   {
-    std::string Slurp(std::ios& stream);
+    std::string Slurp(std::istream& stream);
     std::string FromV8String(v8::Handle<v8::Value> value);
     v8::Local<v8::String> ToV8String(const std::string& str);
 
     // Code for templated function has to be in a header file, can't be in .cpp
     template <class T>
     T TrimString(T text)
     {
       // Via http://stackoverflow.com/questions/216823/whats-the-best-way-to-trim-stdstring