Revert "Chromium changes to statically link ffmpeg."

media/cast/test/simulator.cc

Index: media/cast/test/simulator.cc
diff --git a/media/cast/test/simulator.cc b/media/cast/test/simulator.cc
index 540f377e3e1d774495d526828dea2e5f21389c14..a3a560eb579782aa14c65d66ae0d5f8d3c5e385f 100644
--- a/media/cast/test/simulator.cc
+++ b/media/cast/test/simulator.cc
@@ -739,7 +739,10 @@ int main(int argc, char** argv) {
     }
   }
 
-  media::InitializeMediaLibrary();
+  if (!media::InitializeMediaLibrary(media_path)) {
+    LOG(ERROR) << "Failed to initialize FFmpeg.";
+    return 1;
+  }
 
   base::FilePath source_path = cmd->GetSwitchValuePath(
       media::cast::kSourcePath);