2467c52 rolled the Dart SDK into flutter/flutter, and as part of that change, the API of HttpClientResponse changed to include a compressionState getter that returns a newly defined HttpClientResponseCompressionState enum.

Since the requisite Dart SDK commit (dart-lang/sdk@aa2ce7c) has not yet rolled into Google, Flutter is blocked on landing this code in Google yet.

To keep Flutter rolls (dev releases) flowing, we'll temporarily comment out these references to HttpClientResponseCompressionState upstream (and implement noSuchMethod() to keep the analyzer happy).

This issue tracks the need to turn these references back on once the requisite Dart SDK lands inside Google.