Move //components/test_runner back into //content/shell

components/test_runner/test_common.h

-// Copyright 2014 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.
-
-#ifndef COMPONENTS_TEST_RUNNER_TEST_COMMON_H_
-#define COMPONENTS_TEST_RUNNER_TEST_COMMON_H_
-
-#include <string>
-
-#include "base/strings/string_util.h"
-#include "components/test_runner/test_runner_export.h"
-#include "third_party/WebKit/public/platform/WebString.h"
-#include "third_party/WebKit/public/web/WebNavigationPolicy.h"
-#include "v8/include/v8.h"
-
-class GURL;
-
-namespace test_runner {
-
-inline bool IsASCIIAlpha(char ch) {
-  return base::IsAsciiLower(ch | 0x20);
-}
-
-inline bool IsNotASCIIAlpha(char ch) {
-  return !IsASCIIAlpha(ch);
-}
-
-TEST_RUNNER_EXPORT std::string NormalizeLayoutTestURL(const std::string& url);
-
-std::string URLDescription(const GURL& url);
-const char* WebNavigationPolicyToString(
-    const blink::WebNavigationPolicy& policy);
-
-blink::WebString V8StringToWebString(v8::Local<v8::String> v8_str);
-
-}  // namespace test_runner
-
-#endif  // COMPONENTS_TEST_RUNNER_TEST_COMMON_H_