Add Android.mk

This Android.mk exports several targets useful for the rest of the
system. 'brotli-java' is a library of the java brotli APIs.
'brotli-java-hostdex' is a host dex version of the java brotli APIs.

Bug: 36446542
Test: Builds.
Test: Random other project (PM) can include Brotli APIs.
Change-Id: I8b7ce77f222fd6612866f597599525f3d5f56905
diff --git a/Android.mk b/Android.mk
new file mode 100644
index 0000000..b3b4d2a
--- /dev/null
+++ b/Android.mk
@@ -0,0 +1,40 @@
+# Copyright (C) 2017 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+#
+# Support for brotli in java code.
+#
+
+LOCAL_PATH := $(call my-dir)
+
+brotli_src_files := $(filter-out %Test.java,$(call all-java-files-under, java/))
+
+# Target build
+include $(CLEAR_VARS)
+LOCAL_SRC_FILES := $(brotli_src_files)
+LOCAL_MODULE := brotli-java
+include $(BUILD_JAVA_LIBRARY)
+
+# Host-side Java build
+include $(CLEAR_VARS)
+LOCAL_SRC_FILES := $(brotli_src_files)
+LOCAL_MODULE := brotli-java
+include $(BUILD_HOST_JAVA_LIBRARY)
+
+# Host-side Dalvik build
+include $(CLEAR_VARS)
+LOCAL_SRC_FILES := $(brotli_src_files)
+LOCAL_MODULE := brotli-java-hostdex
+include $(BUILD_HOST_DALVIK_STATIC_JAVA_LIBRARY)