Move detection of HTTP CONNECT proxy from DNS resolver to client channel.
diff --git a/gRPC-Core.podspec b/gRPC-Core.podspec
index 1eb1789..1add33e 100644
--- a/gRPC-Core.podspec
+++ b/gRPC-Core.podspec
@@ -400,6 +400,7 @@
                       'src/core/ext/client_channel/client_channel_factory.h',
                       'src/core/ext/client_channel/connector.h',
                       'src/core/ext/client_channel/http_connect_handshaker.h',
+                      'src/core/ext/client_channel/http_proxy.h',
                       'src/core/ext/client_channel/initial_connect_string.h',
                       'src/core/ext/client_channel/lb_policy.h',
                       'src/core/ext/client_channel/lb_policy_factory.h',
@@ -606,6 +607,7 @@
                       'src/core/ext/client_channel/connector.c',
                       'src/core/ext/client_channel/default_initial_connect_string.c',
                       'src/core/ext/client_channel/http_connect_handshaker.c',
+                      'src/core/ext/client_channel/http_proxy.c',
                       'src/core/ext/client_channel/initial_connect_string.c',
                       'src/core/ext/client_channel/lb_policy.c',
                       'src/core/ext/client_channel/lb_policy_factory.c',
@@ -812,6 +814,7 @@
                               'src/core/ext/client_channel/client_channel_factory.h',
                               'src/core/ext/client_channel/connector.h',
                               'src/core/ext/client_channel/http_connect_handshaker.h',
+                              'src/core/ext/client_channel/http_proxy.h',
                               'src/core/ext/client_channel/initial_connect_string.h',
                               'src/core/ext/client_channel/lb_policy.h',
                               'src/core/ext/client_channel/lb_policy_factory.h',