Move retry and lhttp packages from client/internal to common/.

client/internal/lhttp/utils_test.go

-// Copyright 2015 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-package lhttp
-
-import (
-        "errors"
-        "testing"
-
-        "github.com/maruel/ut"
-)
-
-func TestURLToHTTPS(t *testing.T) {
-        data := []struct {
-                in       string
-                expected string
-                err      error
-        }{
-                {"foo", "https://foo", nil},
-                {"https://foo", "https://foo", nil},
-                {"http://foo", "", errors.New("Only https:// scheme is accepted. It can be omitted.")},
-        }
-        for i, line := range data {
-                out, err := URLToHTTPS(line.in)
-                ut.AssertEqualIndex(t, i, line.expected, out)
-                ut.AssertEqualIndex(t, i, line.err, err)
-        }
-}