Add session analytics to Keyguard.

On eng and userdebug builds, adds the possibility to track touch and sensor events on the Keyguard.

Change-Id: I9ff9fe5545cb9b7e6833a6af0b5a97a6c204dbd2
diff --git a/packages/Keyguard/Android.mk b/packages/Keyguard/Android.mk
index 1f2b5fb..5b08674 100644
--- a/packages/Keyguard/Android.mk
+++ b/packages/Keyguard/Android.mk
@@ -16,7 +16,8 @@
 LOCAL_PATH:= $(call my-dir)
 include $(CLEAR_VARS)
 
-LOCAL_SRC_FILES := $(call all-java-files-under, src) $(call all-subdir-Iaidl-files)
+LOCAL_SRC_FILES := $(call all-java-files-under, src) $(call all-subdir-Iaidl-files) \
+                   $(call all-proto-files-under,src)
 
 LOCAL_PACKAGE_NAME := Keyguard
 
@@ -26,6 +27,9 @@
 
 LOCAL_PROGUARD_FLAG_FILES := proguard.flags
 
+LOCAL_PROTOC_OPTIMIZE_TYPE := nano
+LOCAL_PROTO_JAVA_OUTPUT_PARAMS := optional_field_style=accessors
+
 include $(BUILD_PACKAGE)
 
 #include $(call all-makefiles-under,$(LOCAL_PATH))