Disable regression tests for bug 1042010 only on Windows.

Also add comment linking the related issue.

Bug: 1042010
Bug: 1068579
Change-Id: Ia956aef5d609261f543c1a3eb0e06da80fc64eb9
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2139763
Commit-Queue: Bret Sepulveda <bsep@chromium.org>
Reviewed-by: Bret Sepulveda <bsep@chromium.org>
Reviewed-by: Dominic Mazzoni <dmazzoni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#757824}

chrome/browser/ui/views/session_crashed_bubble_view_browsertest.cc

@@ -66,7 +66,9 @@ IN_PROC_BROWSER_TEST_F(SessionCrashedBubbleViewTest,
   ShowAndVerifyUi();
 }
 
-#if defined(OS_LINUX)
+// TODO(https://crbug.com/1068579): Fails on Windows because the simulated key
+// events don't trigger the accelerators.
+#if !defined(OS_WIN)
 // Regression test for https://crbug.com/1042010, it should be possible to focus
 // the bubble with the "focus dialog" hotkey combination (Alt+Shift+A).
 IN_PROC_BROWSER_TEST_F(SessionCrashedBubbleViewTest,