[Sync] Fixing easy lint violations.

chrome/browser/sync/chrome_sync_client_unittest.cc

 // 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.
 
 #include "chrome/browser/sync/chrome_sync_client.h"
 
 #include <memory>
+#include <string>
 
 #include "chrome/common/url_constants.h"
 #include "components/sync/driver/sync_api_component_factory.h"
 #include "components/sync_sessions/sync_sessions_client.h"
 #include "content/public/test/test_browser_thread_bundle.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "url/gurl.h"
 
 namespace browser_sync {
 
 namespace {
 
-const std::string kValidUrl = "http://www.example.com";
-const std::string kInvalidUrl = "invalid.url";
+const char kValidUrl[] = "http://www.example.com";
+const char kInvalidUrl[] = "invalid.url";
 
 class ChromeSyncClientTest : public testing::Test {
  public:
   ChromeSyncClientTest()
       : sync_client_(new ChromeSyncClient(nullptr, nullptr)) {}
   ~ChromeSyncClientTest() override {}
 
   ChromeSyncClient* sync_client() { return sync_client_.get(); }
 
  private:
@@ skipping 18 matching lines @@
   EXPECT_FALSE(sync_client()->GetSyncSessionsClient()->ShouldSyncURL(
       GURL("chrome-native://anything")));
 
   EXPECT_TRUE(sync_client()->GetSyncSessionsClient()->ShouldSyncURL(
       GURL(chrome::kChromeUIHistoryURL)));
 }
 
 }  // namespace
 
 }  // namespace browser_sync