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

chrome/browser/printing/print_system_task_proxy.cc

Index: chrome/browser/printing/print_system_task_proxy.cc
diff --git a/chrome/browser/printing/print_system_task_proxy.cc b/chrome/browser/printing/print_system_task_proxy.cc
index e3a924fd55c60ff7e98a2800dd256197555f093a..0868c1dbb778983aae5608b295a15ec8516953ec 100644
--- a/chrome/browser/printing/print_system_task_proxy.cc
+++ b/chrome/browser/printing/print_system_task_proxy.cc
@@ -63,7 +63,7 @@ void PrintSystemTaskProxy::GetDefaultPrinter() {
 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);
 }
 
@@ -104,7 +104,7 @@ void PrintSystemTaskProxy::EnumeratePrinters() {
 }
 
 void PrintSystemTaskProxy::SetupPrinterList(ListValue* printers) {
-  if (handler_)
+  if (handler_.get())
     handler_->SetupPrinterList(*printers);
   delete printers;
 }
@@ -162,13 +162,13 @@ void PrintSystemTaskProxy::GetPrinterCapabilities(
 
 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);
 }