crostini: Only run each test once.

The previous test patterns had some overlap in them e.g.
SubPageDefault.DiskResizeOpensWhenClicked would run for both
SubPageDefault and DiskResize test suites. Remove the overlap.

Bug: chromium:1082027
Test: Run browser tests, check the DiskResizeOpens... test only runs once
Change-Id: Ib296c872b596f1ecac390bd2f5c26ce991785da7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2210330Reviewed-by: Kyle Horimoto <khorimoto@chromium.org>
Reviewed-by: Nic Hollingum <hollingum@google.com>
Commit-Queue: David Munro <davidmunro@google.com>
Cr-Commit-Position: refs/heads/master@{#770831}

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

@@ -524,27 +524,27 @@ var OSSettingsCrostiniPageTest = class extends OSSettingsBrowserTest {
 };
 
 TEST_F('OSSettingsCrostiniPageTest', 'MainPage', function() {
-  mocha.grep('MainPage').run();
+  mocha.grep('\\bMainPage\\b').run();
 });
 
 TEST_F('OSSettingsCrostiniPageTest', 'DISABLED_SubPageDefault', function() {
-  mocha.grep('SubPageDefault').run();
+  mocha.grep('\\bSubPageDefault\\b').run();
 });
 
 TEST_F('OSSettingsCrostiniPageTest', 'SubPagePortForwarding', function() {
-  mocha.grep('SubPagePortForwarding').run();
+  mocha.grep('\\bSubPagePortForwarding\\b').run();
 });
 
 TEST_F('OSSettingsCrostiniPageTest', 'DISABLED_DiskResize', function() {
-  mocha.grep('DiskResize').run();
+  mocha.grep('\\bDiskResize\\b').run();
 });
 
 TEST_F('OSSettingsCrostiniPageTest', 'SubPageSharedPaths', function() {
-  mocha.grep('SubPageSharedPaths').run();
+  mocha.grep('\\bSubPageSharedPaths\\b').run();
 });
 
 TEST_F('OSSettingsCrostiniPageTest', 'SubPageSharedUsbDevices', function() {
-  mocha.grep('SubPageSharedUsbDevices').run();
+  mocha.grep('\\bSubPageSharedUsbDevices\\b').run();
 });
 
 // Test fixture for the Date and Time page.