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"
 
 namespace webrtc {
 
-class DtlsIdentityStore;
+class FakeMetricsObserver : public MetricsObserverInterface {
+ public:
+  FakeMetricsObserver() { Reset(); }
+  void Reset() {
+    memset(peer_connection_metrics_counters_, 0,
+           sizeof(peer_connection_metrics_counters_));
+    memset(peer_connection_metrics_name_, 0,
+           sizeof(peer_connection_metrics_name_));
+    for (std::string& type : peer_connection_metrics_name_string_) {
+      type.clear();
+    }
+  }
 
-// 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 {
+    peer_connection_metrics_counters_[type]++;
+  }
+  void AddHistogramSample(PeerConnectionMetricsName type,
+                          int value) override {
+    ASSERT(peer_connection_metrics_name_[type] == 0);
+    peer_connection_metrics_name_[type] = value;
+  }
+  void AddHistogramSample(PeerConnectionMetricsName type,
+                          const std::string& value) override {
+    peer_connection_metrics_name_string_[type] = value;
+  }
 
-  // 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;
+  int peer_connection_metrics_counters_
+      [kPeerConnectionMetricsCounter_Max];
+  int peer_connection_metrics_name_[kPeerConnectionMetricsCounter_Max];
+  std::string peer_connection_metrics_name_string_
+      [kPeerConnectionMetricsName_Max];
 
- private:
-  DtlsIdentityStore* store_;
+  int AddRef() override { return 1; }
+  int Release() override { return 1; }
 };
 
 }  // namespace webrtc
 
-#endif  // TALK_APP_WEBRTC_DTLSIDENTITYSERVICE_H_
+#endif  // TALK_APP_WEBRTC_FAKEMETRICSOBSERVER_H_