Add /proc/<pid>/smaps parser.

Bug: 150930222
Bug: 117646511
Change-Id: I4e2e6916dee4f3e0df027ce1a3ac51c5c6da6fb1
diff --git a/Android.bp b/Android.bp
index 9e60331..cd8f296 100644
--- a/Android.bp
+++ b/Android.bp
@@ -5921,6 +5921,7 @@
     "src/profiling/memory/client_unittest.cc",
     "src/profiling/memory/heapprofd_producer_unittest.cc",
     "src/profiling/memory/page_idle_checker_unittest.cc",
+    "src/profiling/memory/parse_smaps_unittest.cc",
     "src/profiling/memory/sampler_unittest.cc",
     "src/profiling/memory/system_property_unittest.cc",
     "src/profiling/memory/unwinding_unittest.cc",