Replace AllowCrossThreadAccess() + non-GCed pointers with crossThreadUnretained()

third_party/WebKit/Source/platform/threading/BackgroundTaskRunnerTest.cpp

Index: third_party/WebKit/Source/platform/threading/BackgroundTaskRunnerTest.cpp
diff --git a/third_party/WebKit/Source/platform/threading/BackgroundTaskRunnerTest.cpp b/third_party/WebKit/Source/platform/threading/BackgroundTaskRunnerTest.cpp
index 25f8536203780c5f33dba07a1dfe1c9a52d8cbe7..3c112bccee5365d282fc601ee85778be6f9ab6c5 100644
--- a/third_party/WebKit/Source/platform/threading/BackgroundTaskRunnerTest.cpp
+++ b/third_party/WebKit/Source/platform/threading/BackgroundTaskRunnerTest.cpp
@@ -27,7 +27,7 @@ class BackgroundTaskRunnerTest : public testing::Test {
 TEST_F(BackgroundTaskRunnerTest, RunShortTaskOnBackgroundThread)
 {
     std::unique_ptr<WaitableEvent> doneEvent = wrapUnique(new WaitableEvent());
-    BackgroundTaskRunner::postOnBackgroundThread(BLINK_FROM_HERE, threadSafeBind(&PingPongTask, AllowCrossThreadAccess(doneEvent.get())), BackgroundTaskRunner::TaskSizeShortRunningTask);
+    BackgroundTaskRunner::postOnBackgroundThread(BLINK_FROM_HERE, threadSafeBind(&PingPongTask, crossThreadUnretained(doneEvent.get())), BackgroundTaskRunner::TaskSizeShortRunningTask);
     // Test passes by not hanging on the following wait().
     doneEvent->wait();
 }
@@ -35,7 +35,7 @@ TEST_F(BackgroundTaskRunnerTest, RunShortTaskOnBackgroundThread)
 TEST_F(BackgroundTaskRunnerTest, RunLongTaskOnBackgroundThread)
 {
     std::unique_ptr<WaitableEvent> doneEvent = wrapUnique(new WaitableEvent());
-    BackgroundTaskRunner::postOnBackgroundThread(BLINK_FROM_HERE, threadSafeBind(&PingPongTask, AllowCrossThreadAccess(doneEvent.get())), BackgroundTaskRunner::TaskSizeLongRunningTask);
+    BackgroundTaskRunner::postOnBackgroundThread(BLINK_FROM_HERE, threadSafeBind(&PingPongTask, crossThreadUnretained(doneEvent.get())), BackgroundTaskRunner::TaskSizeLongRunningTask);
     // Test passes by not hanging on the following wait().
     doneEvent->wait();
 }