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

client/internal/lhttp/utils_test.go

Index: client/internal/lhttp/utils_test.go
diff --git a/client/internal/lhttp/utils_test.go b/client/internal/lhttp/utils_test.go
deleted file mode 100644
index a7fb3d2dcacc10f977ff6e9adf1766a2d5c672c7..0000000000000000000000000000000000000000
--- a/client/internal/lhttp/utils_test.go
+++ /dev/null
@@ -1,29 +0,0 @@
-// 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)
-	}
-}