Add an error page for net::ERR_ICANN_NAME_COLLISION.

ppapi/host/error_conversion.cc

Index: ppapi/host/error_conversion.cc
diff --git a/ppapi/host/error_conversion.cc b/ppapi/host/error_conversion.cc
index 2b7d73c9ad74fcf53be1912d30428812fbc4c337..f97b121b9c04c36ee2528f0dd2598ac6a264794a 100644
--- a/ppapi/host/error_conversion.cc
+++ b/ppapi/host/error_conversion.cc
@@ -53,6 +53,7 @@ int32_t NetErrorToPepperError(int net_error) {
     case net::ERR_CONNECTION_FAILED:
       return PP_ERROR_CONNECTION_FAILED;
     case net::ERR_NAME_NOT_RESOLVED:
+    case net::ERR_ICANN_NAME_COLLISION:
       return PP_ERROR_NAME_NOT_RESOLVED;
     case net::ERR_ADDRESS_INVALID:
       return PP_ERROR_ADDRESS_INVALID;