Disable flaky test showGridViewDrive.

See e.g.
https://ci.chromium.org/p/chromium/builders/ci/Linux%20ChromiumOS%20MSan%20Tests/21263

TBR=austinct@chromium.org

Bug: 1097013
Change-Id: I4a93350b2edf7a7f12edde32c7eea9004e62f171
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2532453Reviewed-by: Morten Stenshorne <mstensho@chromium.org>
Commit-Queue: Morten Stenshorne <mstensho@chromium.org>
Cr-Commit-Position: refs/heads/master@{#826228}

chrome/browser/chromeos/file_manager/file_manager_browsertest.cc

@@ -890,7 +890,8 @@ WRAPPED_INSTANTIATE_TEST_SUITE_P(
         TestCase("showGridViewDownloads").DisableFilesNg(),
         TestCase("showGridViewDownloads").InGuestMode(),
         TestCase("showGridViewDownloads").FilesNg(),
-        TestCase("showGridViewDrive"),
+        // Flaky test: See crbug.com/1147306
+        // TestCase("showGridViewDrive"),
         TestCase("showGridViewButtonSwitches"),
         TestCase("showGridViewKeyboardSelectionA11y"),
         TestCase("showGridViewTitles").FilesNg(),