Call scoped_refptr<T>::get() rather than relying on implicit "operator T*"

chrome/common/cancelable_task_tracker.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 "chrome/common/cancelable_task_tracker.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 66 matching lines @@
 }
 
 CancelableTaskTracker::TaskId CancelableTaskTracker::PostTaskAndReply(
     TaskRunner* task_runner,
     const tracked_objects::Location& from_here,
     const Closure& task,
     const Closure& reply) {
   DCHECK(thread_checker_.CalledOnValidThread());
 
   // We need a MessageLoop to run reply.
-  DCHECK(base::MessageLoopProxy::current());
+  DCHECK(base::MessageLoopProxy::current().get());
 
   // Owned by reply callback below.
   CancellationFlag* flag = new CancellationFlag();
 
   TaskId id = next_id_;
   next_id_++;  // int64 is big enough that we ignore the potential overflow.
 
   const Closure& untrack_closure = Bind(
       &CancelableTaskTracker::Untrack, weak_factory_.GetWeakPtr(), id);
   bool success = task_runner->PostTaskAndReply(
       from_here,
       Bind(&RunIfNotCanceled, flag, task),
       Bind(&RunIfNotCanceledThenUntrack,
            base::Owned(flag), reply, untrack_closure));
 
   if (!success)
     return kBadTaskId;
 
   Track(id, flag);
   return id;
 }
 
 CancelableTaskTracker::TaskId CancelableTaskTracker::NewTrackedTaskId(
     IsCanceledCallback* is_canceled_cb) {
   DCHECK(thread_checker_.CalledOnValidThread());
-  DCHECK(base::MessageLoopProxy::current());
+  DCHECK(base::MessageLoopProxy::current().get());
 
   TaskId id = next_id_;
   next_id_++;  // int64 is big enough that we ignore the potential overflow.
 
   // Will be deleted by |untrack_and_delete_flag| after Untrack().
   CancellationFlag* flag = new CancellationFlag();
 
   Closure untrack_and_delete_flag = Bind(
       &RunAndDeleteFlag,
       Bind(&CancelableTaskTracker::Untrack, weak_factory_.GetWeakPtr(), id),
@@ skipping 50 matching lines @@
 
   bool success = task_flags_.insert(std::make_pair(id, flag)).second;
   DCHECK(success);
 }
 
 void CancelableTaskTracker::Untrack(TaskId id) {
   DCHECK(thread_checker_.CalledOnValidThread());
   size_t num = task_flags_.erase(id);
   DCHECK_EQ(1u, num);
 }