Update Linux to use scoped_refptr<T>::get() rather than implicit "operator T*"

chrome/service/cloud_print/printer_job_handler_unittest.cc

Index: chrome/service/cloud_print/printer_job_handler_unittest.cc
diff --git a/chrome/service/cloud_print/printer_job_handler_unittest.cc b/chrome/service/cloud_print/printer_job_handler_unittest.cc
index 854e7aaef886a7cb67fd95db07e6f8c571e1f2fa..3efe21cebb85f23d2e4e34d9169b293c069d08e7 100644
--- a/chrome/service/cloud_print/printer_job_handler_unittest.cc
+++ b/chrome/service/cloud_print/printer_job_handler_unittest.cc
@@ -635,14 +635,13 @@ MockPrintSystem::MockPrintSystem()
     : job_spooler_(new NiceMock<MockJobSpooler>()),
       printer_watcher_(new NiceMock<MockPrinterWatcher>()),
       print_server_watcher_(new NiceMock<MockPrintServerWatcher>()) {
-  ON_CALL(*this, CreateJobSpooler())
-      .WillByDefault(Return(job_spooler_));
+  ON_CALL(*this, CreateJobSpooler()).WillByDefault(Return(job_spooler_.get()));
 
   ON_CALL(*this, CreatePrinterWatcher(_))
-      .WillByDefault(Return(printer_watcher_));
+      .WillByDefault(Return(printer_watcher_.get()));
 
   ON_CALL(*this, CreatePrintServerWatcher())
-      .WillByDefault(Return(print_server_watcher_));
+      .WillByDefault(Return(print_server_watcher_.get()));
 
   ON_CALL(*this, IsValidPrinter(_)).
       WillByDefault(Return(true));