Removed use of memset with PrintMsg_Print_Params struct.

chrome/browser/printing/printing_message_filter.cc

Index: chrome/browser/printing/printing_message_filter.cc
diff --git a/chrome/browser/printing/printing_message_filter.cc b/chrome/browser/printing/printing_message_filter.cc
index c6c13d166a59111bb65840f456bd8431458e4cb5..c9593d14b498a941c811fdd9b8058f36dbfb7e01 100644
--- a/chrome/browser/printing/printing_message_filter.cc
+++ b/chrome/browser/printing/printing_message_filter.cc
@@ -210,7 +210,7 @@ void PrintingMessageFilter::OnGetDefaultPrintSettingsReply(
   PrintMsg_Print_Params params;
   if (!printer_query.get() ||
       printer_query->last_status() != printing::PrintingContext::OK) {
-    memset(&params, 0, sizeof(params));
+    params.Reset();
   } else {
     RenderParamsFromPrintSettings(printer_query->settings(), &params);
     params.document_cookie = printer_query->cookie();
@@ -262,7 +262,7 @@ void PrintingMessageFilter::OnScriptedPrintReply(
   PrintMsg_PrintPages_Params params;
   if (printer_query->last_status() != printing::PrintingContext::OK ||
       !printer_query->settings().dpi()) {
-    memset(&params, 0, sizeof(params));
+    params.Reset();
   } else {
     RenderParamsFromPrintSettings(printer_query->settings(), &params.params);
     params.params.document_cookie = printer_query->cookie();
@@ -298,7 +298,7 @@ void PrintingMessageFilter::OnUpdatePrintSettingsReply(
     IPC::Message* reply_msg) {
   PrintMsg_PrintPages_Params params;
   if (printer_query->last_status() != printing::PrintingContext::OK) {
-    memset(&params, 0, sizeof(params));
+    params.Reset();
   } else {
     RenderParamsFromPrintSettings(printer_query->settings(), &params.params);
     params.params.document_cookie = printer_query->cookie();