Introduce chrome.displaySource API

extensions/browser/api/display_source/display_source_connection_delegate_factory.h

+// Copyright 2015 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 EXTENSIONS_BROWSER_API_DISPLAY_SOURCE_DISPLAY_SOURCE_CONNECTION_DELEGATE_FACTORY_H_
+#define EXTENSIONS_BROWSER_API_DISPLAY_SOURCE_DISPLAY_SOURCE_CONNECTION_DELEGATE_FACTORY_H_
+
+#include "base/macros.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/memory/singleton.h"
+#include "components/keyed_service/content/browser_context_keyed_service_factory.h"
+#include "extensions/browser/api/display_source/display_source_connection_delegate.h"
+
+namespace context {
+class BrowserContext;
+}
+
+namespace extensions {
+
+class DisplaySourceConnectionDelegateFactory
+    : public BrowserContextKeyedServiceFactory {
+ public:
+  static DisplaySourceConnectionDelegate* GetForBrowserContext(
+      content::BrowserContext* browser_context);
+  static DisplaySourceConnectionDelegateFactory* GetInstance();
+
+ private:
+  friend struct base::DefaultSingletonTraits<
+      DisplaySourceConnectionDelegateFactory>;
+
+  DisplaySourceConnectionDelegateFactory();
+  ~DisplaySourceConnectionDelegateFactory() override;
+
+  // BrowserContextKeyedServiceFactory:
+  KeyedService* BuildServiceInstanceFor(
+      content::BrowserContext* browser_context) const override;
+  content::BrowserContext* GetBrowserContextToUse(
+      content::BrowserContext* context) const override;
+  bool ServiceIsCreatedWithBrowserContext() const override;
+  bool ServiceIsNULLWhileTesting() const override;
+
+  DISALLOW_COPY_AND_ASSIGN(DisplaySourceConnectionDelegateFactory);
+};
+
+}  // namespace extensions
+
+#endif  // EXTENSIONS_BROWSER_API_DISPLAY_SOURCE_DISPLAY_SOURCE_CONNECTION_DELEGATE_FACTORY_H_