Replace ASSERT with DCHECK in WebAudio

third_party/WebKit/Source/modules/webaudio/AudioListener.cpp

Index: third_party/WebKit/Source/modules/webaudio/AudioListener.cpp
diff --git a/third_party/WebKit/Source/modules/webaudio/AudioListener.cpp b/third_party/WebKit/Source/modules/webaudio/AudioListener.cpp
index 5badcca371b220e0078916a509d058b47163e5d0..21abd48b500edc253463b33b14e3e7fb0596d317 100644
--- a/third_party/WebKit/Source/modules/webaudio/AudioListener.cpp
+++ b/third_party/WebKit/Source/modules/webaudio/AudioListener.cpp
@@ -86,14 +86,14 @@ DEFINE_TRACE(AudioListener)
 
 void AudioListener::addPanner(PannerHandler& panner)
 {
-    ASSERT(isMainThread());
+    DCHECK(isMainThread());
     m_panners.add(&panner);
 }
 
 void AudioListener::removePanner(PannerHandler& panner)
 {
-    ASSERT(isMainThread());
-    ASSERT(m_panners.contains(&panner));
+    DCHECK(isMainThread());
+    DCHECK(m_panners.contains(&panner));
     m_panners.remove(&panner);
 }