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/Android.mk

@@ -79,6 +79,7 @@ LOCAL_C_INCLUDES := \
   frameworks/av/include \
   frameworks/native/include \
   vendor/widevine/libwvdrmengine/cdm/core/include \
+  vendor/widevine/libwvdrmengine/cdm/metrics/include \
   vendor/widevine/libwvdrmengine/cdm/include \
   vendor/widevine/libwvdrmengine/include \
   vendor/widevine/libwvdrmengine/mediacrypto/include \
@@ -98,6 +99,7 @@ LOCAL_SHARED_LIBRARIES := \
   libcutils \
   libdl \
   liblog \
+  libmedia \
   libprotobuf-cpp-lite \
   libstagefright_foundation \
   libutils \