Add Finch experiment for selectively bypassing proxies.

chrome/browser/io_thread.cc

Index: chrome/browser/io_thread.cc
diff --git a/chrome/browser/io_thread.cc b/chrome/browser/io_thread.cc
index 0ae0aa0b5cf7b9bdafa55424b897a120bfe63671..1cf524f57b51baa46fceb183a2b79983b5ec9efd 100644
--- a/chrome/browser/io_thread.cc
+++ b/chrome/browser/io_thread.cc
@@ -41,6 +41,7 @@
 #include "chrome/common/chrome_version_info.h"
 #include "chrome/common/pref_names.h"
 #include "components/data_reduction_proxy/browser/data_reduction_proxy_prefs.h"
+#include "components/data_reduction_proxy/browser/data_reduction_proxy_protocol.h"
 #include "components/data_reduction_proxy/browser/http_auth_handler_data_reduction_proxy.h"
 #include "components/policy/core/common/policy_service.h"
 #include "content/public/browser/browser_thread.h"
@@ -612,6 +613,8 @@ void IOThread::InitAsync() {
       new DataReductionProxyParams(drp_flags));
   network_delegate->set_data_reduction_proxy_params(
       globals_->data_reduction_proxy_params.get());
+  network_delegate->set_on_resolve_proxy_handler(
+      new base::Callback(data_reduction_proxy::OnResolveProxyHandler));
 #endif  // defined(SPDY_PROXY_AUTH_ORIGIN)
 #endif  // defined(OS_ANDROID) || defined(OS_IOS)
   globals_->http_auth_handler_factory.reset(CreateDefaultAuthHandlerFactory(