metricsd: Read build time values from etc/os-release.d.
This stops relying on system properties to provide build time
configuration.
Product version and id will be stored in /etc/os-release.d.
Channel will be pulled from update engine.
BUG: 24947119
Change-Id: I0972d03cd83ef622846de3cce3dec1992fcc46cd
diff --git a/metricsd/constants.h b/metricsd/constants.h
index 8a00fc4..7e1e116 100644
--- a/metricsd/constants.h
+++ b/metricsd/constants.h
@@ -27,10 +27,9 @@
static const char kFailedUploadCountName[] = "failed_upload_count";
static const char kDefaultVersion[] = "0.0.0.0";
-// System properties used.
-static const char kProductIdProperty[] = "ro.product.product_id";
-static const char kChannelProperty[] = "ro.product.channel";
-static const char kProductVersionProperty[] = "ro.product.version";
+// Build time properties name.
+static const char kProductId[] = "product_id";
+static const char kProductVersion[] = "product_version";
} // namespace metrics
#endif // METRICS_CONSTANTS_H_