[PrintingPage] Renames the Cups Printer tests for clarity

Renames the Cups Printer tests to reflect that they work with the
cups_printer.html page. This helps with deep linking by making room
for a test for the actual os_printing_page.

Bug: 1084154
Change-Id: Ia2884b16bf488f0079e781191452826b4d606fba
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2391509Reviewed-by: Jimmy Gong <jimmyxgong@chromium.org>
Reviewed-by: Kyle Horimoto <khorimoto@chromium.org>
Commit-Queue: Daniel Classon <dclasson@google.com>
Cr-Commit-Position: refs/heads/master@{#804039}

chrome/test/data/webui/settings/chromeos/os_settings_browsertest.js

@@ -1445,7 +1445,7 @@ GEN('#endif');
 
 // Tests for the CUPS printer entry.
 // eslint-disable-next-line no-var
-var OSSettingsPrinterEntryTest = class extends OSSettingsBrowserTest {
+var OSSettingsCupsPrinterEntryTest = class extends OSSettingsBrowserTest {
   /** @override */
   get browsePreload() {
     return super.browsePreload +
@@ -1463,13 +1463,13 @@ var OSSettingsPrinterEntryTest = class extends OSSettingsBrowserTest {
   }
 };
 
-TEST_F('OSSettingsPrinterEntryTest', 'AllJsTests', () => {
+TEST_F('OSSettingsCupsPrinterEntryTest', 'AllJsTests', () => {
   mocha.run();
 });
 
 // Tests for the CUPS printer landing page.
 // eslint-disable-next-line no-var
-var OSSettingsPrinterLandingPageTest = class extends OSSettingsBrowserTest {
+var OSSettingsCupsPrinterLandingPageTest = class extends OSSettingsBrowserTest {
   /** @override */
   get browsePreload() {
     return super.browsePreload + 'chromeos/os_printing_page/cups_printers.html';
@@ -1491,13 +1491,13 @@ var OSSettingsPrinterLandingPageTest = class extends OSSettingsBrowserTest {
   }
 };
 
-TEST_F('OSSettingsPrinterLandingPageTest', 'AllJsTests', () => {
+TEST_F('OSSettingsCupsPrinterLandingPageTest', 'AllJsTests', () => {
   mocha.run();
 });
 
-// Tests for the CUPS page.
+// Tests for the CUPS page, primarily the (edit/add) dialogs.
 // eslint-disable-next-line no-var
-var OSSettingsPrintingPageTest = class extends OSSettingsBrowserTest {
+var OSSettingsCupsPrinterPageTest = class extends OSSettingsBrowserTest {
   /** @override */
   get browsePreload() {
     return super.browsePreload + 'chromeos/os_printing_page/cups_printers.html';
@@ -1523,7 +1523,7 @@ var OSSettingsPrintingPageTest = class extends OSSettingsBrowserTest {
   }
 };
 
-TEST_F('OSSettingsPrintingPageTest', 'AllJsTests', () => {
+TEST_F('OSSettingsCupsPrinterPageTest', 'AllJsTests', () => {
   mocha.run();
 });