Bug 1338086 - Remove useless else blocks in order to reduce complexity in dom/media r=jya

MozReview-Commit-ID: IA3oVcvzTQw

--HG--
extra : rebase_source : 808f76256387d3f259a0ce42fc3cfe6416b6d8a8

dom/media/DecoderTraits.cpp

@@ -101,43 +101,39 @@ CanHandleCodecsType(const MediaContainerType& aType,
   if (OggDecoder::IsSupportedType(mimeType)) {
     if (OggDecoder::IsSupportedType(aType)) {
       return CANPLAY_YES;
-    } else {
+    }
     // We can only reach this position if a particular codec was requested,
     // ogg is supported and working: the codec must be invalid.
     return CANPLAY_NO;
   }
-  }
   if (WaveDecoder::IsSupportedType(MediaContainerType(mimeType))) {
     if (WaveDecoder::IsSupportedType(aType)) {
       return CANPLAY_YES;
-    } else {
+    }
     // We can only reach this position if a particular codec was requested,
     // ogg is supported and working: the codec must be invalid.
     return CANPLAY_NO;
   }
-  }
 #if !defined(MOZ_OMX_WEBM_DECODER)
   if (WebMDecoder::IsSupportedType(mimeType)) {
     if (WebMDecoder::IsSupportedType(aType)) {
       return CANPLAY_YES;
-    } else {
+    }
     // We can only reach this position if a particular codec was requested,
     // webm is supported and working: the codec must be invalid.
     return CANPLAY_NO;
   }
-  }
 #endif
 #ifdef MOZ_FMP4
   if (MP4Decoder::IsSupportedType(mimeType,
                                   /* DecoderDoctorDiagnostics* */ nullptr)) {
     if (MP4Decoder::IsSupportedType(aType, aDiagnostics)) {
       return CANPLAY_YES;
-    } else {
+    }
     // We can only reach this position if a particular codec was requested,
     // fmp4 is supported and working: the codec must be invalid.
     return CANPLAY_NO;
   }
-  }
 #endif
   if (MP3Decoder::IsSupportedType(aType)) {
     return CANPLAY_YES;
@@ -166,7 +162,6 @@ CanHandleCodecsType(const MediaContainerType& aType,
     // At least one requested codec is not supported.
     return CANPLAY_NO;
   }
-
   return CANPLAY_YES;
 }