This CL corrects the emptying of the render queues for the

AEC and AECM when these become full to also work when not
in debug mode.

BUG=webrtc:6530

Review-Url: https://codereview.webrtc.org/2419023002
Cr-Commit-Position: refs/heads/master@{#14637}

webrtc/modules/audio_processing/echo_control_mobile_impl.cc

@@ -174,7 +174,8 @@ int EchoControlMobileImpl::ProcessRenderAudio(const AudioBuffer* audio) {
     ReadQueuedRenderData();
 
     // Retry the insert (should always work).
-    RTC_DCHECK_EQ(render_signal_queue_->Insert(&render_queue_buffer_), true);
+    bool result = render_signal_queue_->Insert(&render_queue_buffer_);
+    RTC_DCHECK(result);
   }
 
   return AudioProcessing::kNoError;