Replace ASSERT with DCHECK in WebAudio

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

Index: third_party/WebKit/Source/modules/webaudio/PannerNode.cpp
diff --git a/third_party/WebKit/Source/modules/webaudio/PannerNode.cpp b/third_party/WebKit/Source/modules/webaudio/PannerNode.cpp
index 19d96f764d31eb9259e5588101defe8bcd3a5b21..33a6e0b05d0ed0a7dddc343c8f70b4462711cce9 100644
--- a/third_party/WebKit/Source/modules/webaudio/PannerNode.cpp
+++ b/third_party/WebKit/Source/modules/webaudio/PannerNode.cpp
@@ -514,7 +514,7 @@ float PannerHandler::calculateDistanceConeGain(
 
 void PannerHandler::azimuthElevation(double* outAzimuth, double* outElevation)
 {
-    ASSERT(context()->isAudioThread());
+    DCHECK(context()->isAudioThread());
 
     // Calculate new azimuth and elevation if the panner or the listener changed
     // position or orientation in any way.
@@ -535,7 +535,7 @@ void PannerHandler::azimuthElevation(double* outAzimuth, double* outElevation)
 
 float PannerHandler::distanceConeGain()
 {
-    ASSERT(context()->isAudioThread());
+    DCHECK(context()->isAudioThread());
 
     // Calculate new distance and cone gain if the panner or the listener
     // changed position or orientation in any way.
@@ -558,7 +558,7 @@ void PannerHandler::markPannerAsDirty(unsigned dirty)
 
 void PannerHandler::setChannelCount(unsigned long channelCount, ExceptionState& exceptionState)
 {
-    ASSERT(isMainThread());
+    DCHECK(isMainThread());
     BaseAudioContext::AutoLocker locker(context());
 
     // A PannerNode only supports 1 or 2 channels
@@ -583,7 +583,7 @@ void PannerHandler::setChannelCount(unsigned long channelCount, ExceptionState&
 
 void PannerHandler::setChannelCountMode(const String& mode, ExceptionState& exceptionState)
 {
-    ASSERT(isMainThread());
+    DCHECK(isMainThread());
     BaseAudioContext::AutoLocker locker(context());
 
     ChannelCountMode oldMode = m_channelCountMode;