[DevTools] try to reenable PauseInSharedWorkerInitialization

WorkerDevToolsSanityTest.PauseInSharedWorkerInitialization.
This test is passing locally.

TBR=dgozman@chromium.org

Bug: chromium:432444
Change-Id: I854aa9d72932d788f71724e84720a6529a6b5f4a
Reviewed-on: https://chromium-review.googlesource.com/806924Reviewed-by: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org>
Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#521512}

chrome/browser/devtools/devtools_sanity_browsertest.cc

@@ -1838,9 +1838,8 @@ IN_PROC_BROWSER_TEST_F(WorkerDevToolsSanityTest, InspectSharedWorker) {
   CloseDevToolsWindow();
 }
 
-// Flaky on multiple platforms. See http://crbug.com/432444
 IN_PROC_BROWSER_TEST_F(WorkerDevToolsSanityTest,
-                       DISABLED_PauseInSharedWorkerInitialization) {
+                       PauseInSharedWorkerInitialization) {
   ASSERT_TRUE(spawned_test_server()->Start());
   GURL url = spawned_test_server()->GetURL(kReloadSharedWorkerTestPage);
   ui_test_utils::NavigateToURL(browser(), url);