Refactor net tests to use GMock matchers for checking net::Error results

net/proxy/proxy_list_unittest.cc

Index: net/proxy/proxy_list_unittest.cc
diff --git a/net/proxy/proxy_list_unittest.cc b/net/proxy/proxy_list_unittest.cc
index e98d9c519771f3b9f4b341bfb255d1932e498ca9..6ba4de67ceea0394f83a25ad692db216e760337c 100644
--- a/net/proxy/proxy_list_unittest.cc
+++ b/net/proxy/proxy_list_unittest.cc
@@ -10,8 +10,12 @@
 #include "net/log/net_log.h"
 #include "net/proxy/proxy_retry_info.h"
 #include "net/proxy/proxy_server.h"
+#include "net/test/gtest_util.h"
+#include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
+using net::test::IsOk;
+
 namespace net {
 
 namespace {
@@ -204,7 +208,7 @@ TEST(ProxyListTest, UpdateRetryInfoOnFallback) {
                                    base::TimeDelta::FromSeconds(60), true,
                                    bad_proxies, OK, net_log);
     EXPECT_TRUE(retry_info_map.end() != retry_info_map.find("foopy1:80"));
-    EXPECT_EQ(OK, retry_info_map[proxy_server.ToURI()].net_error);
+    EXPECT_THAT(retry_info_map[proxy_server.ToURI()].net_error, IsOk());
     EXPECT_TRUE(retry_info_map.end() == retry_info_map.find("foopy2:80"));
     EXPECT_TRUE(retry_info_map.end() == retry_info_map.find("foopy3:80"));
   }