Collect data reduction proxy UMA on all platforms

net/http/http_response_headers_unittest.cc

Index: net/http/http_response_headers_unittest.cc
diff --git a/net/http/http_response_headers_unittest.cc b/net/http/http_response_headers_unittest.cc
index fe656e63360f11c9a9a4fc0a9e34a66bb3b54402..c9c8c467eaf26bd19942a13a089a58cf03179286 100644
--- a/net/http/http_response_headers_unittest.cc
+++ b/net/http/http_response_headers_unittest.cc
@@ -2107,6 +2107,7 @@ TEST(HttpResponseHeadersTest, GetProxyBypassInfo) {
               data_reduction_proxy_info.bypass_all);
   }
 }
+#endif  // defined(SPDY_PROXY_AUTH_ORIGIN)
 
 TEST(HttpResponseHeadersTest, IsDataReductionProxyResponse) {
   const struct {
@@ -2182,6 +2183,7 @@ TEST(HttpResponseHeadersTest, IsDataReductionProxyResponse) {
   }
 }
 
+#if defined(SPDY_PROXY_AUTH_ORIGIN)
 TEST(HttpResponseHeadersTest, GetDataReductionProxyBypassEventType) {
   const struct {
      const char* headers;