Optimizes loading initial printer on non-chromeos platforms.

chrome/browser/printing/print_system_task_proxy.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/printing/print_system_task_proxy.h"
 
 #include <ctype.h>
 
 #include <string>
 #include <vector>
@@ skipping 99 matching lines @@
   }
 }
 
 }  // printing_internal namespace
 #endif
 
 using content::BrowserThread;
 
 namespace {
 
+const char kPrinterId[] = "printerId";
 const char kDisableColorOption[] = "disableColorOption";
 const char kSetColorAsDefault[] = "setColorAsDefault";
 const char kSetDuplexAsDefault[] = "setDuplexAsDefault";
 const char kPrinterColorModelForBlack[] = "printerColorModelForBlack";
 const char kPrinterColorModelForColor[] = "printerColorModelForColor";
 const char kPrinterDefaultDuplexValue[] = "printerDefaultDuplexValue";
 
 #if defined(OS_WIN)
 const char kPskColor[] = "psk:Color";
 const char kPskGray[] = "psk:Grayscale";
@@ skipping 422 matching lines @@
                             &default_duplex_setting_value);
 #else
   NOTIMPLEMENTED();
 #endif
   bool disable_color_options = (!printer_color_space_for_color ||
                                 !printer_color_space_for_black ||
                                 (printer_color_space_for_color ==
                                  printer_color_space_for_black));
 
   DictionaryValue settings_info;
+  settings_info.SetString(kPrinterId, printer_name);
   settings_info.SetBoolean(kDisableColorOption, disable_color_options);
   if (printer_color_space_for_color == printing::UNKNOWN_COLOR_MODEL)
     printer_color_space_for_color = printing::COLOR;
 
   if (printer_color_space_for_black == printing::UNKNOWN_COLOR_MODEL)
     printer_color_space_for_black = printing::GRAY;
 
   if (disable_color_options ||
       PrintPreviewHandler::GetStickySettings()->color_model() ==
           printing::UNKNOWN_COLOR_MODEL) {
@@ skipping 17 matching lines @@
       base::Bind(&PrintSystemTaskProxy::SendPrinterCapabilities, this,
                  settings_info.DeepCopy()));
 }
 
 void PrintSystemTaskProxy::SendPrinterCapabilities(
     DictionaryValue* settings_info) {
   if (handler_)
     handler_->SendPrinterCapabilities(*settings_info);
   delete settings_info;
 }