Added HttpUtils::HasValidators and HttpResponse::HasValidators

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 cb0d200b2e76220a71e3379082a92a7c47e63244..70a5d09562a4a13d31f0c7bfebb92e64513ec74b 100644
--- a/net/http/http_response_headers_unittest.cc
+++ b/net/http/http_response_headers_unittest.cc
@@ -1634,6 +1634,40 @@ INSTANTIATE_TEST_CASE_P(HttpResponseHeaders,
                         HasStrongValidatorsTest,
                         testing::ValuesIn(strong_validators_tests));
 
+TEST(HttpResponseHeadersTest, HasValidatorsNone) {
+  std::string headers("HTTP/1.1 200 OK");
+  HeadersToRaw(&headers);
+  scoped_refptr<HttpResponseHeaders> parsed(new HttpResponseHeaders(headers));
+  EXPECT_FALSE(parsed->HasValidators());
+}
+
+TEST(HttpResponseHeadersTest, HasValidatorsEtag) {
+  std::string headers(
+      "HTTP/1.1 200 OK\n"
+      "etag: \"anything\"");
+  HeadersToRaw(&headers);
+  scoped_refptr<HttpResponseHeaders> parsed(new HttpResponseHeaders(headers));
+  EXPECT_TRUE(parsed->HasValidators());
+}
+
+TEST(HttpResponseHeadersTest, HasValidatorsLastModified) {
+  std::string headers(
+      "HTTP/1.1 200 OK\n"
+      "Last-Modified: Wed, 28 Nov 2007 00:40:10 GMT");
+  HeadersToRaw(&headers);
+  scoped_refptr<HttpResponseHeaders> parsed(new HttpResponseHeaders(headers));
+  EXPECT_TRUE(parsed->HasValidators());
+}
+
+TEST(HttpResponseHeadersTest, HasValidatorsWeakEtag) {
+  std::string headers(
+      "HTTP/1.1 200 OK\n"
+      "etag: W/\"anything\"");
+  HeadersToRaw(&headers);
+  scoped_refptr<HttpResponseHeaders> parsed(new HttpResponseHeaders(headers));
+  EXPECT_TRUE(parsed->HasValidators());
+}
+
 struct AddHeaderTestData {
   const char* orig_headers;
   const char* new_header;