Convert WaitableEvent::EventCallback to OnceCallback

base/synchronization/waitable_event_watcher_unittest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/synchronization/waitable_event_watcher.h"
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/macros.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 34 matching lines @@
 };
 
 void RunTest_BasicSignal(MessageLoop::Type message_loop_type) {
   MessageLoop message_loop(message_loop_type);
 
   // A manual-reset event that is not yet signaled.
   WaitableEvent event(WaitableEvent::ResetPolicy::MANUAL,
                       WaitableEvent::InitialState::NOT_SIGNALED);
 
   WaitableEventWatcher watcher;
-  watcher.StartWatching(&event, Bind(&QuitWhenSignaled));
+  watcher.StartWatching(&event, BindOnce(&QuitWhenSignaled));
 
   event.Signal();
 
   RunLoop().Run();
 }
 
 void RunTest_BasicCancel(MessageLoop::Type message_loop_type) {
   MessageLoop message_loop(message_loop_type);
 
   // A manual-reset event that is not yet signaled.
   WaitableEvent event(WaitableEvent::ResetPolicy::MANUAL,
                       WaitableEvent::InitialState::NOT_SIGNALED);
 
   WaitableEventWatcher watcher;
 
-  watcher.StartWatching(&event, Bind(&QuitWhenSignaled));
+  watcher.StartWatching(&event, BindOnce(&QuitWhenSignaled));
 
   watcher.StopWatching();
 }
 
 void RunTest_CancelAfterSet(MessageLoop::Type message_loop_type) {
   MessageLoop message_loop(message_loop_type);
 
   // A manual-reset event that is not yet signaled.
   WaitableEvent event(WaitableEvent::ResetPolicy::MANUAL,
                       WaitableEvent::InitialState::NOT_SIGNALED);
 
   WaitableEventWatcher watcher;
 
   int counter = 1;
   DecrementCountContainer delegate(&counter);
-  WaitableEventWatcher::EventCallback callback =
-      Bind(&DecrementCountContainer::OnWaitableEventSignaled,
-           Unretained(&delegate));
-  watcher.StartWatching(&event, callback);
+  WaitableEventWatcher::EventCallback callback = BindOnce(
+      &DecrementCountContainer::OnWaitableEventSignaled, Unretained(&delegate));
+  watcher.StartWatching(&event, std::move(callback));
 
   event.Signal();
 
   // Let the background thread do its business
   base::PlatformThread::Sleep(base::TimeDelta::FromMilliseconds(30));
 
   watcher.StopWatching();
 
   RunLoop().RunUntilIdle();
 
   // Our delegate should not have fired.
   EXPECT_EQ(1, counter);
 }
 
 void RunTest_OutlivesMessageLoop(MessageLoop::Type message_loop_type) {
   // Simulate a MessageLoop that dies before an WaitableEventWatcher.  This
   // ordinarily doesn't happen when people use the Thread class, but it can
   // happen when people use the Singleton pattern or atexit.
   WaitableEvent event(WaitableEvent::ResetPolicy::MANUAL,
                       WaitableEvent::InitialState::NOT_SIGNALED);
   {
     WaitableEventWatcher watcher;
     {
       MessageLoop message_loop(message_loop_type);
 
-      watcher.StartWatching(&event, Bind(&QuitWhenSignaled));
+      watcher.StartWatching(&event, BindOnce(&QuitWhenSignaled));
     }
   }
 }
 
 void RunTest_DeleteUnder(MessageLoop::Type message_loop_type) {
   // Delete the WaitableEvent out from under the Watcher. This is explictly
   // allowed by the interface.
 
   MessageLoop message_loop(message_loop_type);
 
   {
     WaitableEventWatcher watcher;
 
     WaitableEvent* event =
         new WaitableEvent(WaitableEvent::ResetPolicy::AUTOMATIC,
                           WaitableEvent::InitialState::NOT_SIGNALED);
 
-    watcher.StartWatching(event, Bind(&QuitWhenSignaled));
+    watcher.StartWatching(event, BindOnce(&QuitWhenSignaled));
     delete event;
   }
 }
 
 }  // namespace
 
 //-----------------------------------------------------------------------------
 
 TEST(WaitableEventWatcherTest, BasicSignal) {
   for (int i = 0; i < kNumTestingMessageLoops; i++) {
@@ skipping 19 matching lines @@
   }
 }
 
 TEST(WaitableEventWatcherTest, DeleteUnder) {
   for (int i = 0; i < kNumTestingMessageLoops; i++) {
     RunTest_DeleteUnder(testing_message_loops[i]);
   }
 }
 
 }  // namespace base