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 dacfa906e23e645496492f441e4f121c5fa8cf77..4d3f2b794b3f9967c3ac99fece4603e2736592b9 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);
 }