shill: Compile against libchrome-180609

Made the following fixes to allow compile against a new libchrome:

 - ScopedVector::reset() was renamed to "clear".
 - Hack in base to add "using base::FilePath;" has been removed.
 - Convert MessageLoop::current()->RunAllPending() to
   base::RunLoop().RunUntilIdle().
 - MessageLoopProxy::PostDelayedTask() now takes a base::TimeDelta().
 - scoped_refptr::release() no longer exists.
 - base/eintr_wrapper.h -> base/posix/eintr_wrapper.h
 - base/scoped_temp_dir.h -> base/files/scoped_temp_dir.h
 - base/string_tokenizer.h -> base/strings/string_tokenizer.h
 - New scoped_ptr does compile check for naughty people making scoped_ptrs
   of refcounted objects.
 - base::SplitString() now returns an empty vector when given an empty
   string (instead of a single-element vector with an empty string).

CQ-DEPEND=CL:43774
BUG=chromium-os:38931
TEST=Unit tests, run on real hardware

Change-Id: I6f1f5807e81fb2d52f197871d32ccbccc3038a7c
Reviewed-on: https://gerrit.chromium.org/gerrit/43775
Commit-Queue: Paul Stewart <pstew@chromium.org>
Reviewed-by: Paul Stewart <pstew@chromium.org>
Tested-by: Paul Stewart <pstew@chromium.org>
diff --git a/Makefile b/Makefile
index a1920fd..21db018 100644
--- a/Makefile
+++ b/Makefile
@@ -28,7 +28,7 @@
 SHIMDIR = $(LIBDIR)/shill/shims
 CPPFLAGS += -DSHIMDIR=\"$(SHIMDIR)\"
 
-BASE_VER = 125070
+BASE_VER ?= 180609
 COMMON_PC_DEPS = libchrome-$(BASE_VER) libchromeos-$(BASE_VER)
 SHILL_PC_DEPS = \
 	$(COMMON_PC_DEPS) \