Collect ro.build.reference.fingerprint

bug: 26187474
Change-Id: Ia711af67e233ba554bbb2af0e4395cceb9716041
diff --git a/tools/device-setup/TestDeviceSetup/src/android/tests/getinfo/DeviceInfoConstants.java b/tools/device-setup/TestDeviceSetup/src/android/tests/getinfo/DeviceInfoConstants.java
index 856ba0f..c336d3c 100644
--- a/tools/device-setup/TestDeviceSetup/src/android/tests/getinfo/DeviceInfoConstants.java
+++ b/tools/device-setup/TestDeviceSetup/src/android/tests/getinfo/DeviceInfoConstants.java
@@ -76,4 +76,6 @@
     public static final String MEMORY_CLASS = "memory_class";
     public static final String LARGE_MEMORY_CLASS = "large_memory_class";
     public static final String TOTAL_MEMORY = "total_memory";
+    public static final String REFERENCE_BUILD_FINGERPRINT =
+            "reference_build_fingerprint";
 }
diff --git a/tools/device-setup/TestDeviceSetup/src/android/tests/getinfo/DeviceInfoInstrument.java b/tools/device-setup/TestDeviceSetup/src/android/tests/getinfo/DeviceInfoInstrument.java
index 16abaed..ba542b1 100644
--- a/tools/device-setup/TestDeviceSetup/src/android/tests/getinfo/DeviceInfoInstrument.java
+++ b/tools/device-setup/TestDeviceSetup/src/android/tests/getinfo/DeviceInfoInstrument.java
@@ -81,6 +81,9 @@
         addResult(BUILD_ABIS_64, TextUtils.join(",", Build.SUPPORTED_64_BIT_ABIS));
         addResult(SERIAL_NUMBER, Build.SERIAL);
 
+        addResult(REFERENCE_BUILD_FINGERPRINT,
+            SystemProperties.get("ro.build.reference.fingerprint", ""));
+
         addResult(VERSION_RELEASE, Build.VERSION.RELEASE);
         addResult(VERSION_SDK, Build.VERSION.SDK);
         addResult(VERSION_BASE_OS, SystemProperties.get("ro.build.version.base_os", ""));
@@ -459,7 +462,7 @@
     private String getTotalMemory() {
         ActivityManager activityManager = (ActivityManager) getContext()
                 .getSystemService(Context.ACTIVITY_SERVICE);
-        
+
         MemoryInfo memoryInfo = new MemoryInfo();
         activityManager.getMemoryInfo(memoryInfo);
         return String.valueOf(memoryInfo.totalMem);