Widevine Metrics System

This change is the complete Widevine metrics system. It will
measure and record runtime information about what is happening
in the CDM - such as errors and throughput.

Bug: 33745339
Bug: 26027857
Change-Id: Ic9a82074f1e2b72c72d751b235f8ae361232787d

libwvdrmengine/cdm/include/ami_adapter.h

@@ -0,0 +1,35 @@
+// Copyright 2017 Google Inc. All Rights Reserved.
+
+#ifndef CDM_AMI_ADAPTER_H_
+#define CDM_AMI_ADAPTER_H_
+
+#include <stdint.h>
+
+#include <media/MediaAnalyticsItem.h>
+
+#include "report.h"
+
+namespace wvcdm {
+
+class AmiAdapter : public metrics::Report {
+
+ public:
+  AmiAdapter();
+  AmiAdapter(int64_t parent);
+  ~AmiAdapter();
+
+  metrics::Report* NewReport() const;
+
+  void UpdateString(const std::string& metric_id, const std::string& value);
+  void UpdateInt32(const std::string& metric_id, int32_t value);
+  void UpdateInt64(const std::string& metric_id, int64_t value);
+  void UpdateDouble(const std::string& metric_id, double value);
+
+ private:
+  android::MediaAnalyticsItem analytics_item_;
+
+};
+
+}  // namespace wvcdm
+
+#endif