ScopedPrinterInfoSetter on crash prone blocks.

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>
 
 #include "base/bind.h"
 #include "base/metrics/histogram.h"
 #include "base/string_split.h"
 #include "base/string_util.h"
 #include "base/values.h"
 #include "chrome/browser/ui/webui/print_preview/print_preview_handler.h"
 #include "chrome/browser/ui/webui/print_preview/sticky_settings.h"
+#include "chrome/common/child_process_logging.h"
 #include "printing/backend/print_backend.h"
 #include "printing/print_job_constants.h"
 #include "printing/print_settings.h"
 
 #if defined(USE_CUPS)
 #include <cups/cups.h>
 #include <cups/ppd.h>
 
 #include "base/file_util.h"
 #endif
@@ skipping 482 matching lines @@
       } else {
         *default_duplex_setting_value = printing::SIMPLEX;
     }
   }
 }
 #endif  // defined(OS_WIN)
 
 void PrintSystemTaskProxy::GetPrinterCapabilities(
     const std::string& printer_name) {
   VLOG(1) << "Get printer capabilities start for " << printer_name;
+  child_process_logging::ScopedPrinterInfoSetter prn_info(
+      print_backend_->GetPrinterDriverInfo(printer_name));
   printing::PrinterCapsAndDefaults printer_info;
   if (!print_backend_->GetPrinterCapsAndDefaults(printer_name,
                                                  &printer_info)) {
     return;
   }
 
   bool set_color_as_default = false;
   bool set_duplex_as_default = false;
   int printer_color_space_for_color = printing::UNKNOWN_COLOR_MODEL;
   int printer_color_space_for_black = printing::UNKNOWN_COLOR_MODEL;
@@ skipping 55 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;
 }