Mark FLAKY_QueuedSharedWorkerStartedFromOtherTab flaky on all platforms.

chrome/worker/worker_uitest.cc

Index: chrome/worker/worker_uitest.cc
diff --git a/chrome/worker/worker_uitest.cc b/chrome/worker/worker_uitest.cc
index 5d2004ed054c7392d471cc1149d23dc08bfab045..8453a1aa386b6ba2ce92cba1c3f74784952c1c46 100644
--- a/chrome/worker/worker_uitest.cc
+++ b/chrome/worker/worker_uitest.cc
@@ -632,15 +632,8 @@ TEST_F(WorkerTest, FLAKY_MultipleTabsQueuedSharedWorker) {
   ASSERT_TRUE(WaitForProcessCountToBe(3, max_workers_per_tab));
 }
 
-// Only flaky on Mac  http://crbug.com/48148
-#if defined(OS_MACOSX)
-#define MAYBE_QueuedSharedWorkerStartedFromOtherTab \
-    FLAKY_QueuedSharedWorkerStartedFromOtherTab
-#else
-#define MAYBE_QueuedSharedWorkerStartedFromOtherTab \
-    QueuedSharedWorkerStartedFromOtherTab
-#endif
-TEST_F(WorkerTest, MAYBE_QueuedSharedWorkerStartedFromOtherTab) {
+// Flaky: http://crbug.com/48148
+TEST_F(WorkerTest, FLAKY_QueuedSharedWorkerStartedFromOtherTab) {
   // Tests to make sure that queued shared workers are started up when
   // an instance is launched from another tab.
   int max_workers_per_tab = WorkerService::kMaxWorkersPerTabWhenSeparate;