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
diff --git a/dex2oat/linker/elf_writer_test.cc b/dex2oat/linker/elf_writer_test.cc
index 8427e7b..b2be003 100644
--- a/dex2oat/linker/elf_writer_test.cc
+++ b/dex2oat/linker/elf_writer_test.cc
@@ -18,13 +18,13 @@
 
 #include "base/file_utils.h"
 #include "base/unix_file/fd_file.h"
+#include "base/utils.h"
 #include "common_compiler_test.h"
 #include "elf_file.h"
 #include "elf_file_impl.h"
 #include "elf_writer_quick.h"
 #include "linker/elf_builder.h"
 #include "oat.h"
-#include "utils.h"
 
 namespace art {
 namespace linker {