Replace ASSERT by RTC_DCHECK in all non-test code.

webrtc/pc/mediasession.cc

Index: webrtc/pc/mediasession.cc
diff --git a/webrtc/pc/mediasession.cc b/webrtc/pc/mediasession.cc
index ab2208fefc7afbf20463a88134bac54e3979b910..5e6942384ad734c0f8bfaa6be338bf8028e75540 100644
--- a/webrtc/pc/mediasession.cc
+++ b/webrtc/pc/mediasession.cc
@@ -365,7 +365,7 @@ class UsedIds {
     while (IsIdUsed(next_id_) && next_id_ >= min_allowed_id_) {
       --next_id_;
     }
-    ASSERT(next_id_ >= min_allowed_id_);
+    RTC_DCHECK(next_id_ >= min_allowed_id_);
     return next_id_;
   }
 
@@ -1470,7 +1470,7 @@ SessionDescription* MediaSessionDescriptionFactory::CreateAnswer(
           return NULL;
         }
       } else {
-        ASSERT(IsMediaContentOfType(&*it, MEDIA_TYPE_DATA));
+        RTC_DCHECK(IsMediaContentOfType(&*it, MEDIA_TYPE_DATA));
         if (!AddDataContentForAnswer(offer, options, current_description,
                                      &current_streams, answer.get())) {
           return NULL;