Add the various sanitizers from the GYP setup

Everything doesn't build and many tests don't pass, but the basics are
there.

Change-Id: I6d1219077318d9e168a81d9c3f620a8f77c97c96
diff --git a/third_party/googletest/BUILD b/third_party/googletest/BUILD
index a424c49..f342e66 100644
--- a/third_party/googletest/BUILD
+++ b/third_party/googletest/BUILD
@@ -6,6 +6,8 @@
 # build targets here, the libraries are independent of their location in
 # a more straightforward way.
 
+load('/tools/build_rules/empty_main', 'empty_main_if_asan')
+
 licenses(["notice"])
 
 cc_library(
@@ -252,7 +254,7 @@
 
 cc_test(
 	name = "googletest_sample10_test",
-	srcs = ["googletest/samples/sample10_unittest.cc"],
+	srcs = empty_main_if_asan(["googletest/samples/sample10_unittest.cc"]),
 	deps = [
 	    ":googletest_main",
 	    ":googletest_sample_libs",