Remove task.h and finish base::Bind() migration.

net/base/keygen_handler_unittest.cc

 // Copyright (c) 2011 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 "net/base/keygen_handler.h"
 
 #include <string>
 
 #include "base/base64.h"
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/logging.h"
-#include "base/task.h"
 #include "base/threading/worker_pool.h"
 #include "base/threading/thread_restrictions.h"
 #include "base/synchronization/waitable_event.h"
 #include "build/build_config.h"
 #include "crypto/nss_util.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 #if defined(USE_NSS)
 #include <private/pprthred.h>  // PR_DetachThread
 #endif
@@ skipping 102 matching lines @@
     events[i] = NULL;
 
     VLOG(1) << "KeygenHandler " << i << " produced: " << results[i];
     AssertValidSignedPublicKeyAndChallenge(results[i], "some challenge");
   }
 }
 
 }  // namespace
 
 }  // namespace net