Add learning expectations to predictor browsertests

chrome/browser/net/predictor_browsertest.cc

 // Copyright (c) 2012 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 <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
 #include <memory>
 
@@ skipping 857 matching lines @@
   ui_test_utils::NavigateToURL(browser(),
                                embedded_test_server()->GetURL("/title1.html"));
   EXPECT_EQ(0, observer()->CrossSitePreconnected());
   EXPECT_EQ(0u, cross_site_connection_listener_->GetAcceptedSocketCount());
 }
 
 IN_PROC_BROWSER_TEST_F(PredictorBrowserTest,
                        CrossSiteSimplePredictionAfterTwoNavigations) {
   NavigateToCrossSiteHtmlUrl(1 /* num_cors */, "" /* file_suffix */);
   EXPECT_EQ(0, observer()->CrossSitePreconnected());
+  EXPECT_EQ(1, observer()->CrossSiteLearned());
 
   NavigateToCrossSiteHtmlUrl(1 /* num_cors */, "" /* file_suffix */);
   EXPECT_EQ(4, observer()->CrossSitePreconnected());
   cross_site_connection_listener_->WaitForAcceptedConnectionsOnUI(4u);
 
   FlushClientSocketsOnUIThread();
   FlushServerSocketsOnUIThread(cross_site_test_server());
   cross_site_connection_listener_->ResetCounts();
   observer()->ResetCounts();
 
   EXPECT_EQ(0u, cross_site_connection_listener_->GetAcceptedSocketCount());
 
   // Navigate again and confirm a preconnect. Note that because the two
   // embedded test servers have the same host_piece, an extra preconnect is
   // issued. This results in ceil(((2 + .33) + .33)*.66) + 1 = 3 preconnects.
   ui_test_utils::NavigateToURL(browser(),
                                embedded_test_server()->GetURL("/title1.html"));
   EXPECT_EQ(3, observer()->CrossSitePreconnected());
   cross_site_connection_listener_->WaitForAcceptedConnectionsOnUI(3u);
 }
 
 IN_PROC_BROWSER_TEST_F(PredictorBrowserTest,
                        CrossSiteSimplePredictionAfterTwoNavigations2) {
   NavigateToCrossSiteHtmlUrl(2 /* num_cors */, "" /* file_suffix */);
   EXPECT_EQ(0, observer()->CrossSitePreconnected());
+  EXPECT_EQ(2, observer()->CrossSiteLearned());
 
   NavigateToCrossSiteHtmlUrl(2 /* num_cors */, "" /* file_suffix */);
 
   EXPECT_EQ(4, observer()->CrossSitePreconnected());
   cross_site_connection_listener_->WaitForAcceptedConnectionsOnUI(4u);
 
   FlushClientSocketsOnUIThread();
   FlushServerSocketsOnUIThread(cross_site_test_server());
   cross_site_connection_listener_->ResetCounts();
   observer()->ResetCounts();
@@ skipping 329 matching lines @@
   // Second navigation to content with an img.
   std::string img_content =
       "<img src=\"" + preconnect_url.spec() + "test.gif\">";
   NavigateToDataURLWithContent(img_content);
   connection_listener_->WaitUntilFirstConnectionRead();
   EXPECT_EQ(2u, connection_listener_->GetAcceptedSocketCount());
   EXPECT_EQ(1u, connection_listener_->GetReadSocketCount());
 }
 
 }  // namespace chrome_browser_net