Add a QUIC proxy server to the list of QUIC servers supported at start up

components/data_reduction_proxy/core/browser/data_reduction_proxy_delegate.cc

Index: components/data_reduction_proxy/core/browser/data_reduction_proxy_delegate.cc
diff --git a/components/data_reduction_proxy/core/browser/data_reduction_proxy_delegate.cc b/components/data_reduction_proxy/core/browser/data_reduction_proxy_delegate.cc
index b6b8f379ce37dca3bb79d6e9b0397783a82315e6..840195645629719bfd7dde5d071b35a3bf35eca7 100644
--- a/components/data_reduction_proxy/core/browser/data_reduction_proxy_delegate.cc
+++ b/components/data_reduction_proxy/core/browser/data_reduction_proxy_delegate.cc
@@ -18,7 +18,6 @@
 #include "net/base/url_util.h"
 #include "net/http/http_request_headers.h"
 #include "net/http/http_response_headers.h"
-#include "net/proxy/proxy_server.h"
 #include "net/proxy/proxy_service.h"
 
 namespace data_reduction_proxy {
@@ -145,6 +144,27 @@ void DataReductionProxyDelegate::OnAlternativeProxyBroken(
                            1);
 }
 
+net::ProxyServer
+DataReductionProxyDelegate::GetQuicSupportedProxyServerAtStartUp() const {
+  if (!params::IsIncludedInQuicFieldTrial())
+    return net::ProxyServer();
+
+  if (alternative_proxies_broken_) {
+    RecordQuicProxyAtStartupStatus(QUIC_PROXY_AT_STARTUP_BROKEN);
+    return net::ProxyServer();
+  }
+
+  net::ProxyServer proxy_server(net::ProxyServer::SCHEME_QUIC,
+                                net::HostPortPair("proxy.googlezip.net", 443));

[RyanSturm, 2016/10/24 18:01:07]

nit: is it worth declaring "proxy.googlezip.net" at the top since it is used in
two places in this file?

[tbansal1, 2016/10/24 18:36:07]

Done.

+  if (!config_ || !config_->IsDataReductionProxy(proxy_server, NULL)) {
+    RecordQuicProxyAtStartupStatus(QUIC_PROXY_AT_STARTUP_UNAVAILABLE);
+    return net::ProxyServer();
+  }
+
+  RecordQuicProxyAtStartupStatus(QUIC_PROXY_AT_STARTUP_AVAILABLE);
+  return proxy_server;
+}
+
 bool DataReductionProxyDelegate::SupportsQUIC(
     const net::ProxyServer& proxy_server) const {
   // Enable QUIC for whitelisted proxies.
@@ -160,6 +180,13 @@ void DataReductionProxyDelegate::RecordQuicProxyStatus(
                             QUIC_PROXY_STATUS_BOUNDARY);
 }
 
+void DataReductionProxyDelegate::RecordQuicProxyAtStartupStatus(
+    QuicProxyAtStartup status) const {
+  UMA_HISTOGRAM_ENUMERATION(
+      "DataReductionProxy.Quic.ProxyServerAtStartUpQueried", status,
+      QUIC_PROXY_AT_STARTUP_BOUNDARY);
+}
+
 void OnResolveProxyHandler(const GURL& url,
                            const std::string& method,
                            const net::ProxyConfig& data_reduction_proxy_config,