Update chrome/ to use WeakPtr<T>::get() instead of implicit "operator T*"

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>
 
@@ skipping 45 matching lines @@
   BrowserThread::PostTask(
       BrowserThread::UI, FROM_HERE,
       base::Bind(&PrintSystemTaskProxy::SendDefaultPrinter, this,
                  print_backend_->GetDefaultPrinterName(),
                  std::string()));
 }
 
 void PrintSystemTaskProxy::SendDefaultPrinter(
     const std::string& default_printer,
     const std::string& cloud_print_data) {
-  if (handler_)
+  if (handler_.get())
     handler_->SendInitialSettings(default_printer, cloud_print_data);
 }
 
 void PrintSystemTaskProxy::EnumeratePrinters() {
   VLOG(1) << "Enumerate printers start";
   ListValue* printers = new ListValue;
   printing::PrinterList printer_list;
   print_backend_->EnumeratePrinters(&printer_list);
 
   if (!has_logged_printers_count_) {
@@ skipping 20 matching lines @@
     printers->Append(printer_info);
   }
   VLOG(1) << "Enumerate printers finished, found " << i << " printers";
 
   BrowserThread::PostTask(
       BrowserThread::UI, FROM_HERE,
       base::Bind(&PrintSystemTaskProxy::SetupPrinterList, this, printers));
 }
 
 void PrintSystemTaskProxy::SetupPrinterList(ListValue* printers) {
-  if (handler_)
+  if (handler_.get())
     handler_->SetupPrinterList(*printers);
   delete printers;
 }
 
 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));
 
@@ skipping 37 matching lines @@
   }
 
   BrowserThread::PostTask(
       BrowserThread::UI, FROM_HERE,
       base::Bind(&PrintSystemTaskProxy::SendPrinterCapabilities, this,
                  settings_info.DeepCopy()));
 }
 
 void PrintSystemTaskProxy::SendPrinterCapabilities(
     DictionaryValue* settings_info) {
-  if (handler_)
+  if (handler_.get())
     handler_->SendPrinterCapabilities(*settings_info);
   delete settings_info;
 }
 
 void PrintSystemTaskProxy::SendFailedToGetPrinterCapabilities(
     const std::string& printer_name) {
-  if (handler_)
+  if (handler_.get())
     handler_->SendFailedToGetPrinterCapabilities(printer_name);
 }