Replace ASSERT by RTC_DCHECK in all non-test code.

webrtc/base/signalthread.h

 /*
  *  Copyright 2004 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.
  */
 
 #ifndef WEBRTC_BASE_SIGNALTHREAD_H_
 #define WEBRTC_BASE_SIGNALTHREAD_H_
 
 #include <string>
 
+#include "webrtc/base/checks.h"
 #include "webrtc/base/constructormagic.h"
 #include "webrtc/base/nullsocketserver.h"
 #include "webrtc/base/sigslot.h"
 #include "webrtc/base/thread.h"
 
 namespace rtc {
 
 ///////////////////////////////////////////////////////////////////////////////
 // SignalThread - Base class for worker threads.  The main thread should call
 //  Start() to begin work, and then follow one of these models:
@@ skipping 91 matching lines @@
     RTC_DISALLOW_IMPLICIT_CONSTRUCTORS(Worker);
   };
 
   class SCOPED_LOCKABLE EnterExit {
    public:
     explicit EnterExit(SignalThread* t) EXCLUSIVE_LOCK_FUNCTION(t->cs_)
         : t_(t) {
       t_->cs_.Enter();
       // If refcount_ is zero then the object has already been deleted and we
       // will be double-deleting it in ~EnterExit()! (shouldn't happen)
-      ASSERT(t_->refcount_ != 0);
+      RTC_DCHECK(t_->refcount_ != 0);
       ++t_->refcount_;
     }
     ~EnterExit() UNLOCK_FUNCTION() {
       bool d = (0 == --t_->refcount_);
       t_->cs_.Leave();
       if (d)
         delete t_;
     }
 
    private:
@@ skipping 12 matching lines @@
   int refcount_;
 
   RTC_DISALLOW_COPY_AND_ASSIGN(SignalThread);
 };
 
 ///////////////////////////////////////////////////////////////////////////////
 
 }  // namespace rtc
 
 #endif  // WEBRTC_BASE_SIGNALTHREAD_H_