Added HttpUtils::HasValidators and HttpResponse::HasValidators

net/http/http_util_unittest.cc

Index: net/http/http_util_unittest.cc
diff --git a/net/http/http_util_unittest.cc b/net/http/http_util_unittest.cc
index a5c984db66b1f5e46798036e8c1ac3758fab9f81..6579f93e9eb7ebcd34a345659e040fb77111d01e 100644
--- a/net/http/http_util_unittest.cc
+++ b/net/http/http_util_unittest.cc
@@ -1178,4 +1178,45 @@ TEST(HttpUtilTest, NameValuePairsIteratorMissingEndQuote) {
       &parser, false, true, std::string(), std::string()));
 }
 
+TEST(HttpUtilTest, HasValidatorsHttp09) {
+  std::string etags[] = {"", "\"strong\"", "W/\"weak\""};
+  std::string last_modified_values[] = {"", "Tue, 15 Nov 1994 12:45:26 GMT",
+                                        "invalid"};
+
+  for (const std::string& etag : etags) {
+    for (const std::string& last_modified : last_modified_values) {
+      EXPECT_FALSE(
+          HttpUtil::HasValidators(HttpVersion(0, 9), etag, last_modified));
+    }
+  }
+}
+
+TEST(HttpUtilTest, HasValidatorsHttp10) {
+  std::string etags[] = {"", "\"strong\"", "W/\"weak\""};
+  std::string last_modified_values[] = {"", "Tue, 15 Nov 1994 12:45:26 GMT",
+                                        "invalid"};
+
+  for (const std::string& etag : etags) {
+    for (const std::string& last_modified : last_modified_values) {
+      EXPECT_EQ(
+          last_modified != "" && last_modified != "invalid",
+          HttpUtil::HasValidators(HttpVersion(1, 0), etag, last_modified));
+    }
+  }
+}
+
+TEST(HttpUtilTest, HasValidatorsHttp11) {
+  std::string etags[] = {"", "\"strong\"", "W/\"weak\""};
+  std::string last_modified_values[] = {"", "Tue, 15 Nov 1994 12:45:26 GMT",
+                                        "invalid"};
+
+  for (const std::string& etag : etags) {
+    for (const std::string& last_modified : last_modified_values) {
+      EXPECT_EQ(
+          etag != "" || (last_modified != "" && last_modified != "invalid"),
+          HttpUtil::HasValidators(HttpVersion(1, 1), etag, last_modified));
+    }
+  }
+}
+
 }  // namespace net