Cleanup: Better constify some strings in chrome/browser/{chromeos,extensions}.

chrome/browser/extensions/activity_log/hashed_ad_network_database_unittest.cc

 // 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.
 
 #include "base/basictypes.h"
 #include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/stl_util.h"
 #include "base/strings/string_number_conversions.h"
 #include "chrome/browser/extensions/activity_log/hashed_ad_network_database.h"
 #include "crypto/sha2.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "url/gurl.h"
 
 namespace extensions {
 
 namespace {
 
 // A list of fake ad networks.
-const char* kAdNetworkHosts[] = {
+const char* const kAdNetworkHosts[] = {
   "alpha.adnetwork",
   "bravo.adnetwork",
   "charlie.delta.adnetwork"
 };
 
 // The number of ad networks for these tests.
 const size_t kNumAdNetworkHosts = arraysize(kAdNetworkHosts);
 
 }  // namespace
 
@@ skipping 76 matching lines @@
 // inserted a fake URL in the used dataset for testing purposes.
 TEST(HashedAdNetworkDatabaseUnitTest2, RealFile) {
   HashedAdNetworkDatabase database;
   AdNetworkDatabase* db = static_cast<AdNetworkDatabase*>(&database);
   EXPECT_TRUE(db->IsAdNetwork(
       GURL("http://definitely.surely.always.an.adnetwork")));
   EXPECT_FALSE(db->IsAdNetwork(GURL("http://definitely.not.one")));
 }
 
 }  // namespace extensions