Replace remaining ASSERT with DCHECK|DCHECK_FOO in modules

third_party/WebKit/Source/modules/audio_output_devices/HTMLMediaElementAudioOutputDevice.cpp

 // Copyright 2015 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 "modules/audio_output_devices/HTMLMediaElementAudioOutputDevice.h"
 
 #include <memory>
 #include "bindings/core/v8/ScriptPromiseResolver.h"
 #include "core/dom/DOMException.h"
 #include "core/dom/ExecutionContext.h"
@@ skipping 48 matching lines @@
       timer_(TaskRunnerHelper::Get(TaskType::kMiscPlatformAPI, script_state),
              this,
              &SetSinkIdResolver::TimerFired) {}
 
 void SetSinkIdResolver::StartAsync() {
   timer_.StartOneShot(0, BLINK_FROM_HERE);
 }
 
 void SetSinkIdResolver::TimerFired(TimerBase* timer) {
   ExecutionContext* context = GetExecutionContext();
-  ASSERT(context && context->IsDocument());
+  DCHECK(context);
+  DCHECK(context->IsDocument());
   std::unique_ptr<SetSinkIdCallbacks> callbacks =
       WTF::WrapUnique(new SetSinkIdCallbacks(this, *element_, sink_id_));
   WebMediaPlayer* web_media_player = element_->GetWebMediaPlayer();
   if (web_media_player) {
     // Using release() to transfer ownership because |webMediaPlayer| is a
     // platform object that takes raw pointers.
     web_media_player->SetSinkId(sink_id_,
                                 WebSecurityOrigin(context->GetSecurityOrigin()),
                                 callbacks.release());
   } else {
@@ skipping 61 matching lines @@
     ProvideTo(element, SupplementName(), supplement);
   }
   return *supplement;
 }
 
 DEFINE_TRACE(HTMLMediaElementAudioOutputDevice) {
   Supplement<HTMLMediaElement>::Trace(visitor);
 }
 
 }  // namespace blink