Fixing a typo in cups_printers_manager_unittest.cc

R=skau@chromium.org

Change-Id: Id5bdb2bc28e96d3eef3fa1cd950f0927b4776ec7
Reviewed-on: https://chromium-review.googlesource.com/981528Reviewed-by: Sean Kau <skau@chromium.org>
Commit-Queue: Sean Kau <skau@chromium.org>
Cr-Commit-Position: refs/heads/master@{#545981}

chrome/browser/chromeos/printing/cups_printers_manager_unittest.cc

@@ -424,7 +424,7 @@ TEST_F(CupsPrintersManagerTest, UpdateConfiguredPrinter) {
       "New Display Name");
 
   // Do the same thing for the Automatic and Discovered printers.
-  // Create a configuration for the enterprise printer, which should shift it
+  // Create a configuration for the zeroconf printer, which should shift it
   // into the configured category.
   manager_->UpdateConfiguredPrinter(Printer("Automatic"));
   scoped_task_environment_.RunUntilIdle();