Replace ASSERT, ASSERT_NOT_REACHED, and RELEASE_ASSERT in platform/exported

third_party/WebKit/Source/platform/exported/WebMediaStream.cpp

Index: third_party/WebKit/Source/platform/exported/WebMediaStream.cpp
diff --git a/third_party/WebKit/Source/platform/exported/WebMediaStream.cpp b/third_party/WebKit/Source/platform/exported/WebMediaStream.cpp
index 1c883c4a2290d7e556d436f19443e60dfc0a4256..a2c065f527e58b9a635b24bcdac937d390198fb4 100644
--- a/third_party/WebKit/Source/platform/exported/WebMediaStream.cpp
+++ b/third_party/WebKit/Source/platform/exported/WebMediaStream.cpp
@@ -121,12 +121,12 @@ WebMediaStreamTrack WebMediaStream::GetVideoTrack(
 }
 
 void WebMediaStream::AddTrack(const WebMediaStreamTrack& track) {
-  ASSERT(!IsNull());
+  DCHECK(!IsNull());
   private_->AddRemoteTrack(track);
 }
 
 void WebMediaStream::RemoveTrack(const WebMediaStreamTrack& track) {
-  ASSERT(!IsNull());
+  DCHECK(!IsNull());
   private_->RemoveRemoteTrack(track);
 }