Split Blacklist from ExtensionSystem.

chrome/browser/extensions/extension_install_checker.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 "chrome/browser/extensions/extension_install_checker.h"
 
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/extensions/blacklist.h"
 #include "chrome/browser/extensions/requirements_checker.h"
 #include "chrome/browser/profiles/profile.h"
@@ skipping 96 matching lines @@
 
   requirement_errors_ = errors;
 
   running_checks_ &= ~CHECK_REQUIREMENTS;
   MaybeInvokeCallback();
 }
 
 void ExtensionInstallChecker::CheckBlacklistState() {
   DCHECK(extension_.get());
 
-  extensions::Blacklist* blacklist =
-      ExtensionSystem::Get(profile_)->blacklist();
+  extensions::Blacklist* blacklist = Blacklist::Get(profile_);
   blacklist->IsBlacklisted(
       extension_->id(),
       base::Bind(&ExtensionInstallChecker::OnBlacklistStateCheckDone,
                  weak_ptr_factory_.GetWeakPtr(),
                  current_sequence_number_));
 }
 
 void ExtensionInstallChecker::OnBlacklistStateCheckDone(int sequence_number,
                                                         BlacklistState state) {
   // Some pending results may arrive after fail fast.
@@ skipping 37 matching lines @@
     Callback callback_copy = callback_;
     callback_.Reset();
 
     // This instance may be owned by the callback recipient and deleted here,
     // so reset |callback_| first and invoke a copy of the callback.
     callback_copy.Run(failed_mask);
   }
 }
 
 }  // namespace extensions