Remove PeerConnectionIdentityStore and related messaging/storage code.

content/browser/media/webrtc/webrtc_identity_store.h

-// Copyright 2013 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_BROWSER_MEDIA_WEBRTC_WEBRTC_IDENTITY_STORE_H_
-#define CONTENT_BROWSER_MEDIA_WEBRTC_WEBRTC_IDENTITY_STORE_H_
-
-#include <string>
-#include <vector>
-
-#include "base/callback.h"
-#include "base/macros.h"
-#include "base/time/time.h"
-#include "content/common/content_export.h"
-
-class GURL;
-
-namespace base {
-class FilePath;
-class TaskRunner;
-}  // namespace base
-
-namespace storage {
-class SpecialStoragePolicy;
-}  // namespace storage
-
-namespace content {
-class WebRTCIdentityRequest;
-struct WebRTCIdentityRequestResult;
-class WebRTCIdentityStoreBackend;
-class WebRTCIdentityStoreTest;
-
-// A class for creating and fetching DTLS identities, i.e. the private key and
-// the self-signed certificate.
-// It can be created/destroyed on any thread, but the public methods must be
-// called on the IO thread.
-class CONTENT_EXPORT WebRTCIdentityStore
-    : public base::RefCountedThreadSafe<WebRTCIdentityStore> {
- public:
-  typedef base::Callback<void(int error,
-                              const std::string& certificate,
-                              const std::string& private_key)>
-      CompletionCallback;
-
-  // If |path| is empty, nothing will be saved to disk.
-  WebRTCIdentityStore(const base::FilePath& path,
-                      storage::SpecialStoragePolicy* policy);
-
-  // Retrieve the cached DTLS private key and certificate, i.e. identity, for
-  // the |origin| and |identity_name| pair if such an identity exists and
-  // |enable_cache| is true. Otherwise, generate a new identity using
-  // |common_name|.
-  // If the given |common_name| is different from the common name in the cached
-  // identity that has the same origin and identity_name, a new private key and
-  // a new certificate will be generated, overwriting the old one.
-  //
-  // |origin| is the origin of the DTLS connection;
-  // |identity_name| is used to identify an identity within an origin; it is
-  // opaque to WebRTCIdentityStore and remains private to the caller, i.e. not
-  // present in the certificate;
-  // |common_name| is the common name used to generate the certificate and will
-  // be shared with the peer of the DTLS connection. Identities created for
-  // different origins or different identity names may have the same common
-  // name.
-  // |callback| is the callback to return the result as DER strings.
-  // |enable_cache| is true if the persistent cache should be used to return the
-  // certificate. If a new identity is generated, it will be not saved in the
-  // cache if |enable_cache| is false.
-  // Returns the Closure used to cancel the request if the request is accepted.
-  // The Closure can only be called before the request completes.
-  virtual base::Closure RequestIdentity(const GURL& origin,
-                                        const std::string& identity_name,
-                                        const std::string& common_name,
-                                        const CompletionCallback& callback,
-                                        bool enable_cache);
-
-  // Delete the identities created between |delete_begin| and |delete_end|.
-  // |callback| will be called when the operation is done.
-  void DeleteBetween(base::Time delete_begin,
-                     base::Time delete_end,
-                     const base::Closure& callback);
-
- protected:
-  // Only virtual to allow subclassing for test mock.
-  virtual ~WebRTCIdentityStore();
-
- private:
-  friend class base::RefCountedThreadSafe<WebRTCIdentityStore>;
-  friend class WebRtcIdentityStoreTest;
-
-  void SetValidityPeriodForTesting(base::TimeDelta validity_period);
-  void SetTaskRunnerForTesting(
-      const scoped_refptr<base::TaskRunner>& task_runner);
-
-  void BackendFindCallback(WebRTCIdentityRequest* request,
-                           int error,
-                           const std::string& certificate,
-                           const std::string& private_key);
-  void GenerateIdentityCallback(WebRTCIdentityRequest* request,
-                                WebRTCIdentityRequestResult* result);
-  WebRTCIdentityRequest* FindRequest(const GURL& origin,
-                                     const std::string& identity_name,
-                                     const std::string& common_name);
-  void PostRequestResult(WebRTCIdentityRequest* request,
-                         const WebRTCIdentityRequestResult& result);
-
-  void GenerateNewIdentity(WebRTCIdentityRequest* request);
-
-  // The validity period of the certificates.
-  base::TimeDelta validity_period_;
-
-  // The TaskRunner for doing work on a worker thread.
-  scoped_refptr<base::TaskRunner> task_runner_;
-
-  // Weak references of the in flight requests. Used to join identical external
-  // requests.
-  std::vector<WebRTCIdentityRequest*> in_flight_requests_;
-
-  scoped_refptr<WebRTCIdentityStoreBackend> backend_;
-
-  DISALLOW_COPY_AND_ASSIGN(WebRTCIdentityStore);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_BROWSER_MEDIA_WEBRTC_WEBRTC_IDENTITY_STORE_H_