Add net_unittests to the GN build.

net/net.gypi

 # 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.
 
 # This file is shared between the regular GYP build, the NaCl GYP build, and
 # the GN build. For GN support, it must have no conditionals or anything like
 # that beyond the simple one-level-deep dictionary of values.
 {
   'variables': {
     # Subset of net source files that are compiled for NaCl (net_nacl target).
@@ skipping 1263 matching lines @@
       'cookies/canonical_cookie_unittest.cc',
       'cookies/cookie_constants_unittest.cc',
       'cookies/cookie_monster_unittest.cc',
       'cookies/cookie_store_unittest.h',
       'cookies/cookie_util_unittest.cc',
       'cookies/parsed_cookie_unittest.cc',
       'disk_cache/backend_unittest.cc',
       'disk_cache/blockfile/addr_unittest.cc',
       'disk_cache/blockfile/bitmap_unittest.cc',
       'disk_cache/blockfile/block_bitmaps_v3_unittest.cc',
-      'disk_cache/blockfile/block_bitmaps_v3_unittest.cc',
       'disk_cache/blockfile/block_files_unittest.cc',
       'disk_cache/blockfile/index_table_v3_unittest.cc',
       'disk_cache/blockfile/mapped_file_unittest.cc',
       'disk_cache/blockfile/storage_block_unittest.cc',
       'disk_cache/cache_util_unittest.cc',
       'disk_cache/entry_unittest.cc',
       'disk_cache/simple/simple_index_file_unittest.cc',
       'disk_cache/simple/simple_index_unittest.cc',
       'disk_cache/simple/simple_test_util.cc',
       'disk_cache/simple/simple_test_util.h',
@@ skipping 391 matching lines @@
       'tools/quic/test_tools/quic_test_client.h',
       'tools/quic/test_tools/quic_test_utils.cc',
       'tools/quic/test_tools/quic_test_utils.h',
       'tools/quic/test_tools/server_thread.h',
       'tools/quic/test_tools/server_thread.cc',
       'tools/quic/test_tools/simple_client.h',
       'tools/quic/test_tools/simple_client.cc',
     ],
   }
 }