Please assign to me. I'll remove it once fix is uploaded.

Unfortunately, issues can't be assigned to people without bug editing permissions.  Your comment should be enough to consider this one owned by you.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/320d596edc998927c4578323e5c0797963370ae9

commit 320d596edc998927c4578323e5c0797963370ae9
Author: maksim.sisov <maksim.sisov@intel.com>
Date: Mon Aug 15 18:02:51 2016

First step to remove SingleRequestHostResolver.

This cl makes all the callers to use HostResolver instead of
SingleRequestHostResolver. Next cl will remove the class
completely.

Second part - https://codereview.chromium.org/2212873002/

BUG= 630301 

Review-Url: https://codereview.chromium.org/2214693002
Cr-Commit-Position: refs/heads/master@{#411981}

[modify] https://crrev.com/320d596edc998927c4578323e5c0797963370ae9/chrome/browser/net/predictor.cc
[modify] https://crrev.com/320d596edc998927c4578323e5c0797963370ae9/components/network_hints/browser/network_hints_message_filter.cc
[modify] https://crrev.com/320d596edc998927c4578323e5c0797963370ae9/content/browser/loader/resource_hints_impl.cc
[modify] https://crrev.com/320d596edc998927c4578323e5c0797963370ae9/content/browser/renderer_host/p2p/socket_dispatcher_host.cc
[modify] https://crrev.com/320d596edc998927c4578323e5c0797963370ae9/content/browser/renderer_host/pepper/pepper_lookup_request.h
[modify] https://crrev.com/320d596edc998927c4578323e5c0797963370ae9/content/browser/renderer_host/pepper/pepper_tcp_socket_message_filter.cc
[modify] https://crrev.com/320d596edc998927c4578323e5c0797963370ae9/content/browser/renderer_host/pepper/pepper_tcp_socket_message_filter.h
[modify] https://crrev.com/320d596edc998927c4578323e5c0797963370ae9/net/dns/host_resolver_impl.cc
[modify] https://crrev.com/320d596edc998927c4578323e5c0797963370ae9/net/ftp/ftp_network_transaction.cc
[modify] https://crrev.com/320d596edc998927c4578323e5c0797963370ae9/net/ftp/ftp_network_transaction.h
[modify] https://crrev.com/320d596edc998927c4578323e5c0797963370ae9/net/http/http_auth_handler_negotiate.cc
[modify] https://crrev.com/320d596edc998927c4578323e5c0797963370ae9/net/http/http_auth_handler_negotiate.h
[modify] https://crrev.com/320d596edc998927c4578323e5c0797963370ae9/net/proxy/proxy_script_decider.cc
[modify] https://crrev.com/320d596edc998927c4578323e5c0797963370ae9/net/proxy/proxy_script_decider.h
[modify] https://crrev.com/320d596edc998927c4578323e5c0797963370ae9/net/quic/chromium/quic_stream_factory.cc
[modify] https://crrev.com/320d596edc998927c4578323e5c0797963370ae9/net/socket/socks_client_socket.cc
[modify] https://crrev.com/320d596edc998927c4578323e5c0797963370ae9/net/socket/socks_client_socket.h
[modify] https://crrev.com/320d596edc998927c4578323e5c0797963370ae9/net/socket/transport_client_socket_pool.cc
[modify] https://crrev.com/320d596edc998927c4578323e5c0797963370ae9/net/socket/transport_client_socket_pool.h
[modify] https://crrev.com/320d596edc998927c4578323e5c0797963370ae9/net/socket/websocket_transport_client_socket_pool.cc
[modify] https://crrev.com/320d596edc998927c4578323e5c0797963370ae9/net/socket/websocket_transport_client_socket_pool.h
[modify] https://crrev.com/320d596edc998927c4578323e5c0797963370ae9/net/tools/quic/synchronous_host_resolver.cc

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/b3b148c2f65ecff150684f8fb470b46d8fdc336c

commit b3b148c2f65ecff150684f8fb470b46d8fdc336c
Author: maksim.sisov <maksim.sisov@intel.com>
Date: Tue Aug 16 05:43:23 2016

Remove SingleHostResolver completely.

There is no need in SingleHostResolver after
HostResolver::Request was implemented and
HostResolver::Resolve() started to take unique_ptr instead
of a raw pointer.

First part - https://codereview.chromium.org/2214693002/

THIS CL WILL BE COMMITTED ONCE FIRST PART IS UPSTREAMED

BUG= 630301 

Review-Url: https://codereview.chromium.org/2212873002
Cr-Commit-Position: refs/heads/master@{#412172}

[delete] https://crrev.com/75ce9c3e2c15f2df215184026162dc505df37e4b/net/dns/single_request_host_resolver.cc
[delete] https://crrev.com/75ce9c3e2c15f2df215184026162dc505df37e4b/net/dns/single_request_host_resolver.h
[delete] https://crrev.com/75ce9c3e2c15f2df215184026162dc505df37e4b/net/dns/single_request_host_resolver_unittest.cc
[modify] https://crrev.com/b3b148c2f65ecff150684f8fb470b46d8fdc336c/net/net.gypi