Revert 113282 - Isolates generic DnsClient from AsyncHostResolver.

net/net.gyp

Index: net/net.gyp
===================================================================
--- net/net.gyp	(revision 113383)
+++ net/net.gyp	(working copy)
@@ -55,8 +55,6 @@
         'base/backoff_entry.h',
         'base/bandwidth_metrics.cc',
         'base/bandwidth_metrics.h',
-        'base/big_endian.cc',
-        'base/big_endian.h',
         'base/cache_type.h',
         'base/capturing_net_log.cc',
         'base/capturing_net_log.h',
@@ -325,8 +323,6 @@
         'disk_cache/trace.h',
         'dns/async_host_resolver.cc',
         'dns/async_host_resolver.h',
-        'dns/dns_client.cc',
-        'dns/dns_client.h',
         'dns/dns_config_service.cc',
         'dns/dns_config_service.h',
         'dns/dns_config_service_posix.cc',
@@ -339,8 +335,6 @@
         'dns/dns_query.h',
         'dns/dns_response.cc',
         'dns/dns_response.h',
-        'dns/dns_session.cc',
-        'dns/dns_session.h',
         'dns/dns_transaction.cc',
         'dns/dns_transaction.h',
         'dns/serial_worker.cc',
@@ -998,7 +992,6 @@
       'sources': [
         'base/address_list_unittest.cc',
         'base/backoff_entry_unittest.cc',
-        'base/big_endian_unittest.cc',
         'base/cert_database_nss_unittest.cc',
         'base/cert_verifier_unittest.cc',
         'base/cookie_monster_unittest.cc',
@@ -1059,7 +1052,6 @@
         'disk_cache/mapped_file_unittest.cc',
         'disk_cache/storage_block_unittest.cc',
         'dns/async_host_resolver_unittest.cc',
-        'dns/dns_client_unittest.cc',
         'dns/dns_config_service_posix_unittest.cc',
         'dns/dns_config_service_unittest.cc',
         'dns/dns_config_service_win_unittest.cc',