Header library to remove dependence on runtime/

Add a new header library to remove libdexfile and others' dependence on
runtime (typically runtime/base) includes in libdexfile.  Also a small step
to tease dexlayout and profman away from relying on these as well.

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

Change-Id: I38e2fe399a75f4bc6318c77a71954c00ea73ec2b
diff --git a/dex2oat/linker/elf_writer_quick.cc b/dex2oat/linker/elf_writer_quick.cc
index 707e877..d2e863c 100644
--- a/dex2oat/linker/elf_writer_quick.cc
+++ b/dex2oat/linker/elf_writer_quick.cc
@@ -23,6 +23,7 @@
 #include <android-base/logging.h>
 
 #include "base/casts.h"
+#include "base/leb128.h"
 #include "compiled_method.h"
 #include "debug/elf_debug_writer.h"
 #include "debug/method_debug_info.h"
@@ -30,7 +31,6 @@
 #include "elf.h"
 #include "elf_utils.h"
 #include "globals.h"
-#include "leb128.h"
 #include "linker/buffered_output_stream.h"
 #include "linker/elf_builder.h"
 #include "linker/file_output_stream.h"