Added CHECK for tasks passed to PostTask being null.

base/message_loop.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 "base/message_loop.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/compiler_specific.h"
@@ skipping 237 matching lines @@
 }
 
 void MessageLoop::RemoveDestructionObserver(
     DestructionObserver* destruction_observer) {
   DCHECK_EQ(this, current());
   destruction_observers_.RemoveObserver(destruction_observer);
 }
 
 void MessageLoop::PostTask(
     const tracked_objects::Location& from_here, Task* task) {
+  CHECK(task);
   PendingTask pending_task(
       base::Bind(&TaskClosureAdapter::Run,
                  new TaskClosureAdapter(task, &should_leak_tasks_)),
       from_here,
       CalculateDelayedRuntime(0), true);
   AddToIncomingQueue(&pending_task);
 }
 
 void MessageLoop::PostDelayedTask(
     const tracked_objects::Location& from_here, Task* task, int64 delay_ms) {
+  CHECK(task);
   PendingTask pending_task(
       base::Bind(&TaskClosureAdapter::Run,
                  new TaskClosureAdapter(task, &should_leak_tasks_)),
       from_here,
       CalculateDelayedRuntime(delay_ms), true);
   AddToIncomingQueue(&pending_task);
 }
 
 void MessageLoop::PostNonNestableTask(
     const tracked_objects::Location& from_here, Task* task) {
+  CHECK(task);
   PendingTask pending_task(
       base::Bind(&TaskClosureAdapter::Run,
                  new TaskClosureAdapter(task, &should_leak_tasks_)),
       from_here,
       CalculateDelayedRuntime(0), false);
   AddToIncomingQueue(&pending_task);
 }
 
 void MessageLoop::PostNonNestableDelayedTask(
     const tracked_objects::Location& from_here, Task* task, int64 delay_ms) {
+  CHECK(task);
   PendingTask pending_task(
       base::Bind(&TaskClosureAdapter::Run,
                  new TaskClosureAdapter(task, &should_leak_tasks_)),
       from_here,
       CalculateDelayedRuntime(delay_ms), false);
   AddToIncomingQueue(&pending_task);
 }
 
 void MessageLoop::PostTask(
     const tracked_objects::Location& from_here, const base::Closure& task) {
-  DCHECK(!task.is_null());
+  CHECK(!task.is_null());
   PendingTask pending_task(task, from_here, CalculateDelayedRuntime(0), true);
   AddToIncomingQueue(&pending_task);
 }
 
 void MessageLoop::PostDelayedTask(
     const tracked_objects::Location& from_here, const base::Closure& task,
     int64 delay_ms) {
-  DCHECK(!task.is_null());
+  CHECK(!task.is_null());
   PendingTask pending_task(task, from_here,
                            CalculateDelayedRuntime(delay_ms), true);
   AddToIncomingQueue(&pending_task);
 }
 
 void MessageLoop::PostNonNestableTask(
     const tracked_objects::Location& from_here, const base::Closure& task) {
-  DCHECK(!task.is_null());
+  CHECK(!task.is_null());
   PendingTask pending_task(task, from_here, CalculateDelayedRuntime(0), false);
   AddToIncomingQueue(&pending_task);
 }
 
 void MessageLoop::PostNonNestableDelayedTask(
     const tracked_objects::Location& from_here, const base::Closure& task,
     int64 delay_ms) {
-  DCHECK(!task.is_null());
+  CHECK(!task.is_null());
   PendingTask pending_task(task, from_here,
                            CalculateDelayedRuntime(delay_ms), false);
   AddToIncomingQueue(&pending_task);
 }
 
 void MessageLoop::Run() {
   AutoRunState save_state(this);
   RunHandler();
 }
 
@@ skipping 504 matching lines @@
                                            Watcher *delegate) {
   return pump_libevent()->WatchFileDescriptor(
       fd,
       persistent,
       static_cast<base::MessagePumpLibevent::Mode>(mode),
       controller,
       delegate);
 }
 
 #endif