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/Android.mk

@@ -6,6 +6,7 @@ include $(CLEAR_VARS)
 
 LOCAL_C_INCLUDES := \
     vendor/widevine/libwvdrmengine/cdm/core/include \
+    vendor/widevine/libwvdrmengine/cdm/metrics/include \
     vendor/widevine/libwvdrmengine/cdm/include \
     vendor/widevine/libwvdrmengine/oemcrypto/include \
     vendor/widevine/libwvdrmengine/third_party/stringencoders/src
@@ -18,6 +19,7 @@ LOCAL_STATIC_LIBRARIES := libcdm_protos libcrypto_static
 
 SRC_DIR := src
 CORE_SRC_DIR := core/src
+METRICS_SRC_DIR := metrics/src
 
 LOCAL_SRC_FILES := \
     $(CORE_SRC_DIR)/buffer_reader.cpp \
@@ -33,7 +35,13 @@ LOCAL_SRC_FILES := \
     $(CORE_SRC_DIR)/policy_engine.cpp \
     $(CORE_SRC_DIR)/privacy_crypto_openssl.cpp \
     $(CORE_SRC_DIR)/service_certificate.cpp \
+    $(SRC_DIR)/ami_adapter.cpp \
     $(SRC_DIR)/wv_content_decryption_module.cpp \
+    $(METRICS_SRC_DIR)/distribution.cpp \
+    $(METRICS_SRC_DIR)/event_metric.cpp \
+    $(METRICS_SRC_DIR)/metrics_front_end.cpp \
+    $(METRICS_SRC_DIR)/metrics_group.cpp \
+    $(METRICS_SRC_DIR)/timer_metric.cpp \
 
 
 LOCAL_MODULE := libcdm