Fix compilation problem for clang-3.0.

chrome/browser/chromeos/input_method/ibus_controller_impl.cc

Index: chrome/browser/chromeos/input_method/ibus_controller_impl.cc
diff --git a/chrome/browser/chromeos/input_method/ibus_controller_impl.cc b/chrome/browser/chromeos/input_method/ibus_controller_impl.cc
index 8654b4ecfa609468017ca0f2cb7f669d6900a936..212d5fe7e9390500b1f467d40b2d50929de6301b 100644
--- a/chrome/browser/chromeos/input_method/ibus_controller_impl.cc
+++ b/chrome/browser/chromeos/input_method/ibus_controller_impl.cc
@@ -314,10 +314,10 @@ std::string Spacer(int n) {
   return std::string(n, ' ');
 }
 
+std::string PrintPropList(IBusPropList *prop_list, int tree_level);
+
 // Debug print function.
 std::string PrintProp(IBusProperty *prop, int tree_level) {
-  std::string PrintPropList(IBusPropList *prop_list, int tree_level);
-
   if (!prop)
     return "";