Bug 1248507 - p4. DecoderDoctor base console message - r=bz

MozReview-Commit-ID: 6KzDFcwiYjm

dom/locales/en-US/chrome/dom/dom.properties

@@ -107,6 +107,10 @@ MediaLoadSourceMediaNotMatched=Specified "media" attribute of "%1$S" does not ma
 MediaLoadUnsupportedMimeType=HTTP "Content-Type" of "%1$S" is not supported. Load of media resource %2$S failed.
 # LOCALIZATION NOTE: %S is the URL of the media resource which failed to load because of error in decoding.
 MediaLoadDecodeError=Media resource %S could not be decoded.
+# LOCALIZATION NOTE: %S is a comma-separated list of codecs (e.g. 'video/mp4, video/webm')
+MediaCannotPlayNoDecoders=Cannot play media. No decoders for requested formats: %S
+# LOCALIZATION NOTE: %S is a comma-separated list of codecs (e.g. 'video/mp4, video/webm')
+MediaNoDecoders=No decoders for some of the requested formats: %S
 # LOCALIZATION NOTE: Do not translate "MediaRecorder".
 MediaRecorderMultiTracksNotSupported=MediaRecorder does not support recording multiple tracks of the same type at this time.
 # LOCALIZATION NOTE: %S is the ID of the MediaStreamTrack passed to MediaStream.addTrack(). Do not translate "MediaStreamTrack" and "AudioChannel".