Extensions: Pull duplicated functionality into ExtensionsTest fixture.

content/public/test/test_browser_context.h

 // 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.
 
 #ifndef CONTENT_PUBLIC_TEST_TEST_BROWSER_CONTEXT_H_
 #define CONTENT_PUBLIC_TEST_TEST_BROWSER_CONTEXT_H_
 
 #include <memory>
 
 #include "base/compiler_specific.h"
@@ skipping 54 matching lines @@
   scoped_refptr<net::URLRequestContextGetter> request_context_;
   std::unique_ptr<MockResourceContext> resource_context_;
   scoped_refptr<storage::SpecialStoragePolicy> special_storage_policy_;
   std::unique_ptr<MockSSLHostStateDelegate> ssl_host_state_delegate_;
   std::unique_ptr<PermissionManager> permission_manager_;
   std::unique_ptr<MockBackgroundSyncController> background_sync_controller_;
 
   DISALLOW_COPY_AND_ASSIGN(TestBrowserContext);
 };
 
+// An incognito version of a TestBrowserContext.
+class TestBrowserContextIncognito : public TestBrowserContext {
+ public:
+  TestBrowserContextIncognito();
+  ~TestBrowserContextIncognito() override;
+
+  // TestBrowserContext implementation.
+  bool IsOffTheRecord() const override;

[sky, 2017/04/04 20:43:37]

How about a setter on TestBrowserContext as if in incognito?

[karandeepb, 2017/04/04 23:03:16]

Done.

+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(TestBrowserContextIncognito);
+};
+
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_TEST_TEST_BROWSER_CONTEXT_H_