ca49303576
This reverts commit00090a0c72. Revert "Add fast-mode Uri class." This reverts commit323ca7e410. Revert "Fix regression for the one case where we deliberately don't follow the RFC." This reverts commitb39e048c4b. Revert "Cache hashCode in Uri implementations to improve performance when used as, e.g., Map key." This reverts commita11ad27723. BUG=https://github.com/dart-lang/sdk/issues/26917 TBR=keertip@google.com Review URL: https://codereview.chromium.org/2167663002 .