Migrate WaitableEvent to enum-based constructor in gpu/

gpu/command_buffer/common/gles2_cmd_format_test.cc

Index: gpu/command_buffer/common/gles2_cmd_format_test.cc
diff --git a/gpu/command_buffer/common/gles2_cmd_format_test.cc b/gpu/command_buffer/common/gles2_cmd_format_test.cc
index 4403886486e3713b0ab272505c6c28de60e30ed2..15a8670eb0305382b609f3dfd5398660150bf584 100644
--- a/gpu/command_buffer/common/gles2_cmd_format_test.cc
+++ b/gpu/command_buffer/common/gles2_cmd_format_test.cc
@@ -105,7 +105,9 @@ TEST(GLES2FormatAsyncUploadSyncTest, AsyncUploadSync) {
     }
 
     // Flush the thread message loop before starting again.
-    base::WaitableEvent waitable(false, false);
+    base::WaitableEvent waitable(
+        base::WaitableEvent::ResetPolicy::AUTOMATIC,
+        base::WaitableEvent::InitialState::NOT_SIGNALED);
     thread.task_runner()->PostTask(
         FROM_HERE,
         base::Bind(&base::WaitableEvent::Signal, base::Unretained(&waitable)));