Move Extension into extensions namespace

chrome/browser/extensions/component_loader_unittest.cc

 // Copyright (c) 2012 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 <string>
 
 #include "chrome/browser/extensions/component_loader.h"
 
 #include "base/file_util.h"
 #include "base/path_service.h"
 #include "chrome/browser/extensions/test_extension_service.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/extensions/extension.h"
 #include "chrome/common/extensions/extension_set.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/test/base/testing_pref_service.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
+using extensions::Extension;
+
 namespace {
 
 class MockExtensionService : public TestExtensionService {
  private:
   bool ready_;
   size_t unloaded_count_;
   ExtensionSet extension_set_;
 
  public:
   MockExtensionService() : ready_(false), unloaded_count_(0) {
@@ skipping 249 matching lines @@
   ASSERT_EQ(default_count + 1, extension_service_.extensions()->size());
   ASSERT_EQ(0u, extension_service_.unloaded_count());
 
   // replace loaded component extension.
   component_loader_.AddOrReplace(known_extension);
   ASSERT_EQ(default_count + 1, extension_service_.extensions()->size());
   ASSERT_EQ(1u, extension_service_.unloaded_count());
 }
 
 }  // namespace extensions