Export provisioning sdk

Change-Id: I4d47d80444c9507f84896767dc676112ca11e901

base/BUILD

@@ -0,0 +1,24 @@
+################################################################################
+# Copyright 2016 Google Inc.
+#
+# This software is licensed under the terms defined in the Widevine Master
+# License Agreement. For a copy of this agreement, please contact
+# widevine-licensing@google.com.
+################################################################################
+
+package(
+    default_visibility = ["//visibility:public"],
+)
+
+cc_library(
+    name = "base",
+    hdrs = [
+        "macros.h",
+        "mutex.h",
+        "thread_annotations.h",
+    ],
+    deps = [
+        "//external:gflags",
+        "//external:glog",
+    ],
+)