Removing SignalingTask and replace with base::Bind(&WaitableEvent::Signal, ...)

chrome/browser/extensions/test_extension_prefs.cc

Index: chrome/browser/extensions/test_extension_prefs.cc
diff --git a/chrome/browser/extensions/test_extension_prefs.cc b/chrome/browser/extensions/test_extension_prefs.cc
index a95be5982a92f5373fb295b0f6b3a7203fd0e71c..cccbdecc2bf6d80e3c8dba72a38579034eabd963 100644
--- a/chrome/browser/extensions/test_extension_prefs.cc
+++ b/chrome/browser/extensions/test_extension_prefs.cc
@@ -4,12 +4,13 @@
 
 #include "chrome/browser/extensions/test_extension_prefs.h"
 
+#include "base/bind.h"
+#include "base/bind_helpers.h"
 #include "base/file_util.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop.h"
 #include "base/message_loop_proxy.h"
 #include "base/synchronization/waitable_event.h"
-#include "base/test/signaling_task.h"
 #include "base/values.h"
 #include "chrome/browser/extensions/extension_pref_store.h"
 #include "chrome/browser/extensions/extension_pref_value_map.h"
@@ -73,8 +74,11 @@ void TestExtensionPrefs::RecreateExtensionPrefs() {
     // PrefService.
     base::WaitableEvent io_finished(false, false);
     pref_service_->SavePersistentPrefs();
-    EXPECT_TRUE(BrowserThread::PostTask(BrowserThread::FILE, FROM_HERE,
-                                        new base::SignalingTask(&io_finished)));
+    EXPECT_TRUE(BrowserThread::PostTask(
+        BrowserThread::FILE,
+        FROM_HERE,
+        base::Bind(&base::WaitableEvent::Signal,
+                   base::Unretained(&io_finished))));
 
     // If the FILE thread is in fact the current thread (possible in testing
     // scenarios), we have to ensure the task has a chance to run. If the FILE