Make content::PermissionType an enum class.

content/public/browser/content_browser_client.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_BROWSER_CONTENT_BROWSER_CLIENT_H_
 #define CONTENT_PUBLIC_BROWSER_CONTENT_BROWSER_CLIENT_H_
 
 #include <map>
 #include <string>
 #include <utility>
 #include <vector>
 
 #include "base/callback_forward.h"
 #include "base/memory/linked_ptr.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/scoped_vector.h"
 #include "base/values.h"
 #include "content/public/browser/certificate_request_result_type.h"
-#include "content/public/browser/permission_type.h"
 #include "content/public/common/content_client.h"
 #include "content/public/common/media_stream_request.h"
 #include "content/public/common/permission_status.mojom.h"
 #include "content/public/common/resource_type.h"
 #include "content/public/common/socket_permission_request.h"
 #include "content/public/common/window_container_type.h"
 #include "net/base/mime_util.h"
 #include "net/cookies/canonical_cookie.h"
 #include "net/url_request/url_request_interceptor.h"
 #include "net/url_request/url_request_job_factory.h"
@@ skipping 44 matching lines @@
 class SelectFilePolicy;
 }
 
 namespace storage {
 class ExternalMountPoints;
 class FileSystemBackend;
 }
 
 namespace content {
 
+enum class PermissionType;
 class AccessTokenStore;
 class BrowserChildProcessHost;
 class BrowserContext;
 class BrowserMainParts;
 class BrowserPluginGuestDelegate;
 class BrowserPpapiHost;
 class BrowserURLHandler;
 class ClientCertificateDelegate;
 class DevToolsManagerDelegate;
 class ExternalVideoSurfaceContainer;
@@ skipping 553 matching lines @@
   // Allows an embedder to provide its own ExternalVideoSurfaceContainer
   // implementation.  Return nullptr to disable external surface video.
   virtual ExternalVideoSurfaceContainer*
   OverrideCreateExternalVideoSurfaceContainer(WebContents* web_contents);
 #endif
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_CONTENT_BROWSER_CLIENT_H_