Migrate WaitableEvent to enum-based constructor in ppapi/

ppapi/proxy/ppp_instance_proxy_unittest.cc

Index: ppapi/proxy/ppp_instance_proxy_unittest.cc
diff --git a/ppapi/proxy/ppp_instance_proxy_unittest.cc b/ppapi/proxy/ppp_instance_proxy_unittest.cc
index 755d83b8a02a7d0b84ce509367c88171a705d1f4..6c696a786d310042ed244a9f5cfdfd0236d3bd6a 100644
--- a/ppapi/proxy/ppp_instance_proxy_unittest.cc
+++ b/ppapi/proxy/ppp_instance_proxy_unittest.cc
@@ -49,7 +49,9 @@ PP_Rect received_position;
 PP_Rect received_clip;
 // DidChangeView is asynchronous. We wait until the call has completed before
 // proceeding on to the next test.
-base::WaitableEvent did_change_view_called(false, false);
+base::WaitableEvent did_change_view_called(
+    base::WaitableEvent::ResetPolicy::AUTOMATIC,
+    base::WaitableEvent::InitialState::NOT_SIGNALED);
 void DidChangeView(PP_Instance instance, const PP_Rect* position,
                    const PP_Rect* clip) {
   received_instance = instance;
@@ -59,7 +61,9 @@ void DidChangeView(PP_Instance instance, const PP_Rect* position,
 }
 
 PP_Bool received_has_focus;
-base::WaitableEvent did_change_focus_called(false, false);
+base::WaitableEvent did_change_focus_called(
+    base::WaitableEvent::ResetPolicy::AUTOMATIC,
+    base::WaitableEvent::InitialState::NOT_SIGNALED);
 void DidChangeFocus(PP_Instance instance, PP_Bool has_focus) {
   received_instance = instance;
   received_has_focus = has_focus;