Report metrics about negotiated ciphers.

talk/app/webrtc/fakemetricsobserver.cc

Index: talk/app/webrtc/fakemetricsobserver.cc
diff --git a/talk/app/webrtc/fakemetricsobserver.cc b/talk/app/webrtc/fakemetricsobserver.cc
new file mode 100644
index 0000000000000000000000000000000000000000..66e1c51f2a4035dd1ea011b78ae19ee2271ff692
--- /dev/null
+++ b/talk/app/webrtc/fakemetricsobserver.cc
@@ -0,0 +1,81 @@
+/*
+ * 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.
+ */
+
+#include "talk/app/webrtc/fakemetricsobserver.h"
+#include "webrtc/base/checks.h"
+
+namespace webrtc {
+
+FakeMetricsObserver::FakeMetricsObserver() {
+  Reset();
+}
+
+void FakeMetricsObserver::Reset() {
+  DCHECK(thread_checker_.CalledOnValidThread());
+  memset(counters_, 0, sizeof(counters_));
+  memset(int_histogram_samples_, 0, sizeof(int_histogram_samples_));
+  for (std::string& type : string_histogram_samples_) {
+    type.clear();
+  }
+}
+
+void FakeMetricsObserver::IncrementCounter(PeerConnectionMetricsCounter type) {
+  DCHECK(thread_checker_.CalledOnValidThread());
+  ++counters_[type];
+}
+
+void FakeMetricsObserver::AddHistogramSample(PeerConnectionMetricsName type,
+    int value) {
+  DCHECK(thread_checker_.CalledOnValidThread());
+  DCHECK_EQ(int_histogram_samples_[type], 0);
+  int_histogram_samples_[type] = value;
+}
+
+void FakeMetricsObserver::AddHistogramSample(PeerConnectionMetricsName type,
+    const std::string& value) {
+  DCHECK(thread_checker_.CalledOnValidThread());
+  string_histogram_samples_[type].assign(value);
+}
+
+int FakeMetricsObserver::GetCounter(PeerConnectionMetricsCounter type) const {
+  DCHECK(thread_checker_.CalledOnValidThread());
+  return counters_[type];
+}
+
+int FakeMetricsObserver::GetIntHistogramSample(
+    PeerConnectionMetricsName type) const {
+  DCHECK(thread_checker_.CalledOnValidThread());
+  return int_histogram_samples_[type];
+}
+
+const std::string& FakeMetricsObserver::GetStringHistogramSample(
+    PeerConnectionMetricsName type) const {
+  DCHECK(thread_checker_.CalledOnValidThread());
+  return string_histogram_samples_[type];
+}
+
+}  // namespace webrtc