Report metrics about negotiated ciphers.

talk/app/webrtc/fakemetricsobserver.h

 /*
  * libjingle
  * Copyright 2015 Google Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  *  1. Redistributions of source code must retain the above copyright notice,
  *     this list of conditions and the following disclaimer.
  *  2. Redistributions in binary form must reproduce the above copyright notice,
  *     this list of conditions and the following disclaimer in the documentation
  *     and/or other materials provided with the distribution.
  *  3. The name of the author may not be used to endorse or promote products
  *     derived from this software without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
  * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef TALK_APP_WEBRTC_DTLSIDENTITYSERVICE_H_
-#define TALK_APP_WEBRTC_DTLSIDENTITYSERVICE_H_
+#ifndef TALK_APP_WEBRTC_FAKEMETRICSOBSERVER_H_
+#define TALK_APP_WEBRTC_FAKEMETRICSOBSERVER_H_
 
+#include <map>
 #include <string>
 
 #include "talk/app/webrtc/peerconnectioninterface.h"
+#include "webrtc/base/thread_checker.h"
 
 namespace webrtc {
 
-class DtlsIdentityStore;
+class FakeMetricsObserver : public MetricsObserverInterface {
+ public:
+  FakeMetricsObserver();
+  void Reset();
 
-// This class forwards the request to DtlsIdentityStore to generate the
-// identity.
-class DtlsIdentityService : public webrtc::DTLSIdentityServiceInterface {
- public:
-  explicit DtlsIdentityService(DtlsIdentityStore* store) : store_(store) {}
+  void IncrementCounter(PeerConnectionMetricsCounter type) override;
+  void AddHistogramSample(PeerConnectionMetricsName type,
+                          int value) override;
+  void AddHistogramSample(PeerConnectionMetricsName type,
+                          const std::string& value) override;
 
-  // DTLSIdentityServiceInterface impl.
-  // |identity_name| and |common_name| must equal to
-  // DtlsIdentityStore::kIdentityName, otherwise the request will fail and false
-  // will be returned.
-  bool RequestIdentity(const std::string& identity_name,
-                       const std::string& common_name,
-                       webrtc::DTLSIdentityRequestObserver* observer) override;
+  // Accessors to be used by the tests.
+  int GetCounter(PeerConnectionMetricsCounter type) const;
+  int GetIntHistogramSample(PeerConnectionMetricsName type) const;
+  const std::string& GetStringHistogramSample(
+      PeerConnectionMetricsName type) const;
+
+ protected:
+  ~FakeMetricsObserver() {}
 
  private:
-  DtlsIdentityStore* store_;
+  rtc::ThreadChecker thread_checker_;
+  int counters_[kPeerConnectionMetricsCounter_Max];
+  int int_histogram_samples_[kPeerConnectionMetricsCounter_Max];
+  std::string string_histogram_samples_[kPeerConnectionMetricsName_Max];
 };
 
 }  // namespace webrtc
 
-#endif  // TALK_APP_WEBRTC_DTLSIDENTITYSERVICE_H_
+#endif  // TALK_APP_WEBRTC_FAKEMETRICSOBSERVER_H_