Allow fallback from https to http for component update checks.

components/update_client/request_sender_unittest.cc

Index: components/update_client/request_sender_unittest.cc
diff --git a/components/update_client/request_sender_unittest.cc b/components/update_client/request_sender_unittest.cc
index 5132fd9e92b28fd3c55c832dbbe97050c39f2fa6..55821324cbcace02f9e86998673efaef46cae94f 100644
--- a/components/update_client/request_sender_unittest.cc
+++ b/components/update_client/request_sender_unittest.cc
@@ -45,7 +45,9 @@ class RequestSenderTest : public testing::Test {
   void SetUp() override;
   void TearDown() override;
 
-  void RequestSenderComplete(int error, const std::string& response);
+  void RequestSenderComplete(int error,
+                             const std::string& response,
+                             int retry_after_sec);
 
  protected:
   void Quit();
@@ -124,7 +126,8 @@ void RequestSenderTest::Quit() {
 }
 
 void RequestSenderTest::RequestSenderComplete(int error,
-                                              const std::string& response) {
+                                              const std::string& response,
+                                              int retry_after_sec) {
   error_ = error;
   response_ = response;