rename a few files to camel-case, add copyright notices
diff --git a/libs/utils/Android.mk b/libs/utils/Android.mk
index 1acc1a4..0b4c95b 100644
--- a/libs/utils/Android.mk
+++ b/libs/utils/Android.mk
@@ -96,8 +96,8 @@
 LOCAL_SRC_FILES:= \
 	$(commonSources) \
 	Unicode.cpp \
-    backup_data.cpp \
-	backup_helper_file.cpp
+    BackupData.cpp \
+	BackupHelpers.cpp
 
 ifeq ($(TARGET_SIMULATOR),true)
 LOCAL_SRC_FILES += $(hostSources)