Remove unused HostResolver::Observer.

BUG=
TEST=compiles, ./net_unittests


Review URL: http://codereview.chromium.org/8533011

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@110109 0039d316-1c4b-4281-b951-d872f2087c98

3 files changed, 2 insertions, 11 deletions

diff --git a/net/socket/socks_client_socket_pool.cc b/net/socket/socks_client_socket_pool.cc
index 4dbb442..aa0373d 100644
--- a/net/socket/socks_client_socket_pool.cc
+++ b/net/socket/socks_client_socket_pool.cc
@@ -17,6 +17,7 @@
 
 namespace net {
 
+// TODO(szym): remove unneeded referrer
 SOCKSSocketParams::SOCKSSocketParams(
     const scoped_refptr<TransportSocketParams>& proxy_server,
     bool socks_v5,
@@ -30,10 +31,6 @@ SOCKSSocketParams::SOCKSSocketParams(
     ignore_limits_ = transport_params_->ignore_limits();
   else
     ignore_limits_ = false;
-  // The referrer is used by the DNS prefetch system to correlate resolutions
-  // with the page that triggered them. It doesn't impact the actual addresses
-  // that we resolve to.
-  destination_.set_referrer(referrer);
   destination_.set_priority(priority);
 }
 
diff --git a/net/socket/socks_client_socket_unittest.cc b/net/socket/socks_client_socket_unittest.cc
index 0ed1834..2f7645f 100644
--- a/net/socket/socks_client_socket_unittest.cc
+++ b/net/socket/socks_client_socket_unittest.cc
@@ -111,9 +111,6 @@ class HangingHostResolverWithCancel : public HostResolver {
     outstanding_request_ = NULL;
   }
 
-  virtual void AddObserver(Observer* observer) OVERRIDE {}
-  virtual void RemoveObserver(Observer* observer) OVERRIDE {}
-
   bool HasOutstandingRequest() {
     return outstanding_request_ != NULL;
   }
diff --git a/net/socket/transport_client_socket_pool.cc b/net/socket/transport_client_socket_pool.cc
index 7138bb9..43276dc 100644
--- a/net/socket/transport_client_socket_pool.cc
+++ b/net/socket/transport_client_socket_pool.cc
@@ -70,13 +70,10 @@ TransportSocketParams::TransportSocketParams(
 
 TransportSocketParams::~TransportSocketParams() {}
 
+// TODO(szym): remove unneeded referrer
 void TransportSocketParams::Initialize(RequestPriority priority,
                                        const GURL& referrer,
                                        bool disable_resolver_cache) {
-  // The referrer is used by the DNS prefetch system to correlate resolutions
-  // with the page that triggered them. It doesn't impact the actual addresses
-  // that we resolve to.
-  destination_.set_referrer(referrer);
   destination_.set_priority(priority);
   if (disable_resolver_cache)
     destination_.set_allow_cached_response(false);