Worker: Update test expectations for external/wpt/workers/semantics/multiple-workers/

This addresses recent WPT-side changes:
https://github.com/web-platform-tests/wpt/issues/11222

These files test nested workers on dedicated workers and shared workers that
haven't been implemented yet in Chromium.

Bug: 31666, 655458
Change-Id: I52f75c3ee2e77b03861cdf6fb0e7d07de93c9d0f
Reviewed-on: https://chromium-review.googlesource.com/1113160Reviewed-by: Matt Falkenhagen <falken@chromium.org>
Commit-Queue: Hiroki Nakagawa <nhiroki@chromium.org>
Cr-Commit-Position: refs/heads/master@{#569980}

third_party/WebKit/LayoutTests/TestExpectations

@@ -3660,10 +3660,7 @@ crbug.com/655458 external/wpt/workers/constructors/Worker/same-origin.html [ Fai
 crbug.com/655458 external/wpt/workers/interfaces/WorkerGlobalScope/location/redirect.html [ Failure Timeout ]
 crbug.com/655458 external/wpt/workers/interfaces/WorkerGlobalScope/onerror/propagate-to-window-onerror.html [ Failure Timeout ]
 crbug.com/655458 external/wpt/workers/interfaces/WorkerUtils/importScripts/006.html [ Failure Timeout ]
-crbug.com/655458 external/wpt/workers/semantics/multiple-workers/003.html [ Failure Timeout ]
-crbug.com/655458 external/wpt/workers/semantics/multiple-workers/005.html [ Failure Timeout ]
-crbug.com/655458 external/wpt/workers/semantics/multiple-workers/006.html [ Failure Timeout ]
-crbug.com/655458 external/wpt/workers/semantics/multiple-workers/007.html [ Failure Timeout ]
+crbug.com/655458 external/wpt/workers/semantics/multiple-workers/007.html [ Timeout ]
 
 crbug.com/490511 external/wpt/html/semantics/embedded-content/media-elements/playing-the-media-resource/pause-remove-from-document-networkState.html [ Timeout ]
 

third_party/WebKit/LayoutTests/external/wpt/workers/semantics/multiple-workers/003-expected.txt

+This is a testharness.js-based test.
+FAIL creating 3 nested dedicated workers assert_unreached: error Reached unreachable code
+Harness: the test ran to completion.
+

third_party/WebKit/LayoutTests/external/wpt/workers/semantics/multiple-workers/005-expected.txt

+This is a testharness.js-based test.
+FAIL dedicated worker in shared worker in dedicated worker assert_unreached: error Reached unreachable code
+Harness: the test ran to completion.
+

third_party/WebKit/LayoutTests/external/wpt/workers/semantics/multiple-workers/006-expected.txt

+This is a testharness.js-based test.
+FAIL shared worker in dedicated worker in shared worker assert_equals: expected "123" but got "Uncaught ReferenceError: Worker is not defined"
+Harness: the test ran to completion.
+