Do not build task_queue.cc and include from webrtc_overrides in Chrome.

webrtc/base/task_queue_unittest.cc

 /*
  *  Copyright 2016 The WebRTC Project Authors. All rights reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 235 matching lines @@
 
     queue.PostTask([&event]() { event.Wait(Event::kForever); });
     for (int i = 0; i < kTaskCount; ++i)
       queue.PostTask(NewClosure([&tasks_executed]() { ++tasks_executed; },
                                 [&tasks_cleaned_up]() { ++tasks_cleaned_up; }));
     event.Set();  // Unblock the first task.
   }
 
   EXPECT_GE(tasks_cleaned_up, tasks_executed);
   EXPECT_EQ(kTaskCount, tasks_cleaned_up);
-
-  LOG(INFO) << "tasks executed: " << tasks_executed
-            << ", tasks cleaned up: " << tasks_cleaned_up;
 }
 
 }  // namespace rtc