[Courgette] Extract qsufsort module and add tests.

courgette/BUILD.gn

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import("//testing/test.gni")
 
 static_library("courgette_lib") {
   sources = [
     "adjustment_method.cc",
     "adjustment_method.h",
@@ skipping 29 matching lines @@
     "patcher_x86_32.h",
     "region.h",
     "simple_delta.cc",
     "simple_delta.h",
     "streams.cc",
     "streams.h",
     "third_party/bsdiff.h",
     "third_party/bsdiff_apply.cc",
     "third_party/bsdiff_create.cc",
     "third_party/paged_array.h",
+    "third_party/qsufsort.h",
     "types_elf.h",
     "types_win_pe.h",
   ]
 
   deps = [
     "//base",
     "//third_party/lzma_sdk",
   ]
 }
 
@@ skipping 37 matching lines @@
     "difference_estimator_unittest.cc",
     "disassembler_elf_32_x86_unittest.cc",
     "disassembler_win32_x64_unittest.cc",
     "disassembler_win32_x86_unittest.cc",
     "encode_decode_unittest.cc",
     "encoded_program_unittest.cc",
     "ensemble_unittest.cc",
     "memory_allocator_unittest.cc",
     "streams_unittest.cc",
     "third_party/paged_array_unittest.cc",
+    "third_party/qsufsort_unittest.cc",
     "typedrva_unittest.cc",
     "versioning_unittest.cc",
   ]
 
   # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
   configs += [ "//build/config/compiler:no_size_t_to_int_warning" ]
 
   deps = [
     ":courgette_lib",
     "//base",
@@ skipping 12 matching lines @@
     "encoded_program_fuzz_unittest.cc",
   ]
   deps = [
     ":courgette_lib",
     "//base",
     "//base:i18n",
     "//base/test:test_support",
     "//testing/gtest",
   ]
 }