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

chrome/browser/extensions/external_component_loader.cc

 // Copyright (c) 2013 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/extensions/external_component_loader.h"
 
 #include "base/command_line.h"
 #include "base/sha1.h"
 #include "base/strings/string_number_conversions.h"
 #include "chrome/browser/bookmarks/enhanced_bookmarks_features.h"
@@ skipping 10 matching lines @@
 
 ExternalComponentLoader::ExternalComponentLoader(Profile* profile)
     : profile_(profile) {
 }
 
 ExternalComponentLoader::~ExternalComponentLoader() {}
 
 // static
 bool ExternalComponentLoader::IsModifiable(const Extension* extension) {
   if (extension->location() == Manifest::EXTERNAL_COMPONENT) {
-    static const char* enhanced_extension_hashes[] = {
+    static const char* const enhanced_extension_hashes[] = {
         "D5736E4B5CF695CB93A2FB57E4FDC6E5AFAB6FE2",  // http://crbug.com/312900
         "D57DE394F36DC1C3220E7604C575D29C51A6C495",  // http://crbug.com/319444
         "3F65507A3B39259B38C8173C6FFA3D12DF64CCE9"   // http://crbug.com/371562
     };
     std::string hash = base::SHA1HashString(extension->id());
     hash = base::HexEncode(hash.c_str(), hash.length());
     for (size_t i = 0; i < arraysize(enhanced_extension_hashes); i++)
       if (hash == enhanced_extension_hashes[i])
         return true;
   }
@@ skipping 22 matching lines @@
   if (GetBookmarksExperimentExtensionID(profile_->GetPrefs(), &ext_id) &&
       !ext_id.empty()) {
     prefs_->SetString(ext_id + ".external_update_url",
                       extension_urls::GetWebstoreUpdateUrl().spec());
   }
 
   LoadFinished();
 }
 
 }  // namespace extensions