Remove custom Task implementations in base.

base/synchronization/cancellation_flag_unittest.cc

Index: base/synchronization/cancellation_flag_unittest.cc
diff --git a/base/synchronization/cancellation_flag_unittest.cc b/base/synchronization/cancellation_flag_unittest.cc
index e4b58303e10cffacbbc4c10592aa90b9875baf72..9a845de5d749dba550beabff58e37202ec88050f 100644
--- a/base/synchronization/cancellation_flag_unittest.cc
+++ b/base/synchronization/cancellation_flag_unittest.cc
@@ -6,6 +6,7 @@
 
 #include "base/synchronization/cancellation_flag.h"
 
+#include "base/bind.h"
 #include "base/logging.h"
 #include "base/message_loop.h"
 #include "base/spin_wait.h"
@@ -22,17 +23,11 @@ namespace {
 // Define our test class.
 //------------------------------------------------------------------------------
 
-class CancelTask : public Task {
- public:
-  explicit CancelTask(CancellationFlag* flag) : flag_(flag) {}
-  virtual void Run() {
+void CancelHelper(CancellationFlag* flag) {
 #if GTEST_HAS_DEATH_TEST
-    ASSERT_DEBUG_DEATH(flag_->Set(), "");
+  ASSERT_DEBUG_DEATH(flag->Set(), "");
 #endif
-  }
- private:
-  CancellationFlag* flag_;
-};
+}
 
 TEST(CancellationFlagTest, SimpleSingleThreadedTest) {
   CancellationFlag flag;
@@ -61,7 +56,7 @@ TEST(CancellationFlagTest, SetOnDifferentThreadDeathTest) {
   ASSERT_TRUE(t.IsRunning());
 
   CancellationFlag flag;
-  t.message_loop()->PostTask(FROM_HERE, new CancelTask(&flag));
+  t.message_loop()->PostTask(FROM_HERE, base::Bind(&CancelHelper, &flag));
 }
 
 }  // namespace