Fix flakiness in SSLErrorHandlerDateInvalidTest tests

chrome/browser/ssl/ssl_error_handler_unittest.cc

Index: chrome/browser/ssl/ssl_error_handler_unittest.cc
diff --git a/chrome/browser/ssl/ssl_error_handler_unittest.cc b/chrome/browser/ssl/ssl_error_handler_unittest.cc
index f31e10ce187be2ea2d3931da6a5aae3eb29fe71e..34b6395f7cf3bf109877df63ebabfab92afaa835 100644
--- a/chrome/browser/ssl/ssl_error_handler_unittest.cc
+++ b/chrome/browser/ssl/ssl_error_handler_unittest.cc
@@ -223,6 +223,10 @@ class SSLErrorHandlerDateInvalidTest : public ChromeRenderViewHostTestHarness {
     error_handler_.reset(
         new SSLErrorHandlerForTest(profile(), web_contents(), ssl_info_));
     error_handler_->SetNetworkTimeTrackerForTest(tracker_.get());
+
+    // Fix flakiness in case system time is off and triggers a bad clock
+    // interstitial. https://crbug.com/666821#c50
+    ssl_errors::SetBuildTimeForTesting(base::Time::Now());
   }
 
   void TearDown() override {