Replace RE2 import with a dependency

third_party/re2/re2.gyp

 # 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.
 
 {
   'variables': {
     'build_for_tool%': '',
   },
   'targets': [
     {
       'target_name': 're2',
       'type': 'static_library',
       'include_dirs': [
-        '.',
+        'src',
         '<(DEPTH)',
       ],
       'direct_dependent_settings': {
         'include_dirs': [
-          '.',
+          'src',
           '<(DEPTH)',
         ],
       },
       'dependencies': [
         '<(DEPTH)/base/third_party/dynamic_annotations/dynamic_annotations.gyp:dynamic_annotations',
       ],
       'sources': [
-        're2/bitstate.cc',
-        're2/compile.cc',
-        're2/dfa.cc',
-        're2/filtered_re2.cc',
-        're2/filtered_re2.h',
-        're2/mimics_pcre.cc',
-        're2/nfa.cc',
-        're2/onepass.cc',
-        're2/parse.cc',
-        're2/perl_groups.cc',
-        're2/prefilter.cc',
-        're2/prefilter.h',
-        're2/prefilter_tree.cc',
-        're2/prefilter_tree.h',
-        're2/prog.cc',
-        're2/prog.h',
-        're2/re2.cc',
-        're2/re2.h',
-        're2/regexp.cc',
-        're2/regexp.h',
-        're2/set.cc',
-        're2/set.h',
-        're2/simplify.cc',
-        're2/stringpiece.cc',
-        're2/stringpiece.h',
-        're2/tostring.cc',
-        're2/unicode_casefold.cc',
-        're2/unicode_casefold.h',
-        're2/unicode_groups.cc',
-        're2/unicode_groups.h',
-        're2/variadic_function.h',
-        're2/walker-inl.h',
-        'util/atomicops.h',
-        'util/flags.h',
-        'util/hash.cc',
-        'util/logging.cc',
-        'util/logging.h',
-        'util/mutex.h',
-        'util/rune.cc',
-        'util/sparse_array.h',
-        'util/sparse_set.h',
-        'util/stringprintf.cc',
-        'util/strutil.cc',
-        'util/utf.h',
-        'util/util.h',
-        'util/valgrind.cc',
-        'util/valgrind.h',
+        'src/re2/bitstate.cc',
+        'src/re2/compile.cc',
+        'src/re2/dfa.cc',
+        'src/re2/filtered_re2.cc',
+        'src/re2/filtered_re2.h',
+        'src/re2/mimics_pcre.cc',
+        'src/re2/nfa.cc',
+        'src/re2/onepass.cc',
+        'src/re2/parse.cc',
+        'src/re2/perl_groups.cc',
+        'src/re2/prefilter.cc',
+        'src/re2/prefilter.h',
+        'src/re2/prefilter_tree.cc',
+        'src/re2/prefilter_tree.h',
+        'src/re2/prog.cc',
+        'src/re2/prog.h',
+        'src/re2/re2.cc',
+        'src/re2/re2.h',
+        'src/re2/regexp.cc',
+        'src/re2/regexp.h',
+        'src/re2/set.cc',
+        'src/re2/set.h',
+        'src/re2/simplify.cc',
+        'src/re2/stringpiece.cc',
+        'src/re2/stringpiece.h',
+        'src/re2/tostring.cc',
+        'src/re2/unicode_casefold.cc',
+        'src/re2/unicode_casefold.h',
+        'src/re2/unicode_groups.cc',
+        'src/re2/unicode_groups.h',
+        'src/re2/variadic_function.h',
+        'src/re2/walker-inl.h',
+        'src/util/atomicops.h',
+        'src/util/flags.h',
+        'src/util/hash.cc',
+        'src/util/logging.cc',
+        'src/util/logging.h',
+        'src/util/mutex.h',
+        'src/util/rune.cc',
+        'src/util/sparse_array.h',
+        'src/util/sparse_set.h',
+        'src/util/stringprintf.cc',
+        'src/util/strutil.cc',
+        'src/util/utf.h',
+        'src/util/util.h',
+        'src/util/valgrind.cc',
+        'src/util/valgrind.h',
       ],
       'conditions': [
         ['OS=="win"', {
           'msvs_disabled_warnings': [ 4018, 4722, 4267 ],
         }],
         ['build_for_tool=="drmemory"', {
           # Treat builds for Dr. Memory as builds for MSAN to prevent false
           # positives created by lazily initialized memory.
           # See crbug.com/568119#3 .
           'defines': [
             'MEMORY_SANITIZER'
           ],
         }],
       ]
     },
   ],
 }