Allow fallback from https to http for component update checks.

components/update_client/utils_unittest.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/files/file_path.h"
 #include "base/path_service.h"
 #include "components/update_client/utils.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "url/gurl.h"
 
@@ skipping 63 matching lines @@
   EXPECT_FALSE(IsValidBrand(std::string("TESTS")));  // Too long.
   EXPECT_FALSE(IsValidBrand(std::string("TES1")));   // Has digit.
   EXPECT_FALSE(IsValidBrand(std::string(" TES")));   // Begins with white space.
   EXPECT_FALSE(IsValidBrand(std::string("TES ")));   // Ends with white space.
   EXPECT_FALSE(IsValidBrand(std::string("T ES")));   // Contains white space.
   EXPECT_FALSE(IsValidBrand(std::string("<TE")));    // Has <.
   EXPECT_FALSE(IsValidBrand(std::string("TE>")));    // Has >.
   EXPECT_FALSE(IsValidBrand(std::string("\xaa")));   // Has non-ASCII char.
 }
 
+TEST(UpdateClientUtils, RemoveUnsecureUrls) {
+  const GURL test1[] = {GURL("http://foo"), GURL("https://foo")};
+  std::vector<GURL> urls(std::begin(test1), std::end(test1));
+  RemoveUnsecureUrls(&urls);
+  EXPECT_EQ(1u, urls.size());
+  EXPECT_EQ(urls[0], GURL("https://foo"));
+
+  const GURL test2[] = {GURL("https://foo"), GURL("http://foo")};
+  urls.assign(std::begin(test2), std::end(test2));
+  RemoveUnsecureUrls(&urls);
+  EXPECT_EQ(1u, urls.size());
+  EXPECT_EQ(urls[0], GURL("https://foo"));
+
+  const GURL test3[] = {GURL("https://foo"), GURL("https://bar")};
+  urls.assign(std::begin(test3), std::end(test3));
+  RemoveUnsecureUrls(&urls);
+  EXPECT_EQ(2u, urls.size());
+  EXPECT_EQ(urls[0], GURL("https://foo"));
+  EXPECT_EQ(urls[1], GURL("https://bar"));
+
+  const GURL test4[] = {GURL("http://foo")};
+  urls.assign(std::begin(test4), std::end(test4));
+  RemoveUnsecureUrls(&urls);
+  EXPECT_EQ(0u, urls.size());
+
+  const GURL test5[] = {GURL("http://foo"), GURL("http://bar")};
+  urls.assign(std::begin(test5), std::end(test5));
+  RemoveUnsecureUrls(&urls);
+  EXPECT_EQ(0u, urls.size());
+}
+
 }  // namespace update_client