Bug 1310140. Part 2 - add DecodeMetadataState::HandleVideoSuspendTimeout(). r=kaku,kamidphish

MozReview-Commit-ID: 5NCo9ooQEvU

--HG--
extra : rebase_source : 7ee8a78ea67a87a856fa2c9aa2ffcc39c0102cf9
extra : source : 9a6fa8c9893d4e7fd341e9d31846ff8992a1001b

dom/media/MediaDecoderStateMachine.cpp

@@ -319,6 +319,11 @@ public:
     return MediaDecoder::SeekPromise::CreateAndReject(true, __func__);
   }
 
+  void HandleVideoSuspendTimeout() override
+  {
+    // Do nothing since no decoders are created yet.
+  }
+
 private:
   void OnMetadataRead(MetadataHolder* aMetadata);