Move most of runtime/base to libartbase/base

Enforce the layering that code in runtime/base should not depend on
runtime by separating it into libartbase.  Some of the code in
runtime/base depends on the Runtime class, so it cannot be moved yet.
Also, some of the tests depend on CommonRuntimeTest, which itself needs
to be factored (in a subsequent CL).

Bug: 22322814
Test: make -j 50 checkbuild
      make -j 50 test-art-host

Change-Id: I8b096c1e2542f829eb456b4b057c71421b77d7e2
Merged-In: c431b9dc4b23cc950eb313695258df5d89f53b22

(cherry picked from commit c431b9dc4b23cc950eb313695258df5d89f53b22)
diff --git a/dex2oat/dex2oat_test.cc b/dex2oat/dex2oat_test.cc
index 6b75595..96dd319 100644
--- a/dex2oat/dex2oat_test.cc
+++ b/dex2oat/dex2oat_test.cc
@@ -29,6 +29,7 @@
 
 #include "base/macros.h"
 #include "base/mutex-inl.h"
+#include "base/utils.h"
 #include "bytecode_utils.h"
 #include "dex/art_dex_file_loader.h"
 #include "dex/base64_test_util.h"
@@ -40,7 +41,6 @@
 #include "jit/profile_compilation_info.h"
 #include "oat.h"
 #include "oat_file.h"
-#include "utils.h"
 #include "vdex_file.h"
 #include "ziparchive/zip_writer.h"