Add Incognito Navigation histograms

components/navigation_metrics/navigation_metrics_unittest.cc

 // Copyright 2017 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 "components/navigation_metrics/navigation_metrics.h"
 
 #include "base/test/histogram_tester.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "url/gurl.h"
 
 namespace {
 const char* const kTestUrl = "http://www.example.com";
 const char* const kMainFrameScheme = "Navigation.MainFrameScheme";
 const char* const kMainFrameSchemeDifferentPage =
     "Navigation.MainFrameSchemeDifferentPage";
+const char* const kMainFrameSchemeOTR = "Navigation.MainFrameSchemeOTR";
+const char* const kMainFrameSchemeDifferentPageOTR =
+    "Navigation.MainFrameSchemeDifferentPageOTR";
 
 }  // namespace
 
 namespace navigation_metrics {
 
 TEST(NavigationMetrics, MainFrameSchemeDifferentDocument) {
   base::HistogramTester test;
 
   RecordMainFrameNavigation(GURL(kTestUrl), false, false);
 
   test.ExpectTotalCount(kMainFrameScheme, 1);
   test.ExpectUniqueSample(kMainFrameScheme, 1 /* http */, 1);
   test.ExpectTotalCount(kMainFrameSchemeDifferentPage, 1);
   test.ExpectUniqueSample(kMainFrameSchemeDifferentPage, 1 /* http */, 1);
+  test.ExpectTotalCount(kMainFrameSchemeOTR, 0);
+  test.ExpectTotalCount(kMainFrameSchemeDifferentPageOTR, 0);
 }
 
 TEST(NavigationMetrics, MainFrameSchemeSameDocument) {
   base::HistogramTester test;
 
   RecordMainFrameNavigation(GURL(kTestUrl), true, false);
 
   test.ExpectTotalCount(kMainFrameScheme, 1);
   test.ExpectUniqueSample(kMainFrameScheme, 1 /* http */, 1);
   test.ExpectTotalCount(kMainFrameSchemeDifferentPage, 0);
+  test.ExpectTotalCount(kMainFrameSchemeOTR, 0);
+  test.ExpectTotalCount(kMainFrameSchemeDifferentPageOTR, 0);
+}
+
+TEST(NavigationMetrics, MainFrameSchemeDifferentDocumentOTR) {
+  base::HistogramTester test;
+
+  RecordMainFrameNavigation(GURL(kTestUrl), false, true);
+
+  test.ExpectTotalCount(kMainFrameScheme, 1);
+  test.ExpectUniqueSample(kMainFrameScheme, 1 /* http */, 1);
+  test.ExpectTotalCount(kMainFrameSchemeDifferentPage, 1);
+  test.ExpectUniqueSample(kMainFrameSchemeDifferentPage, 1 /* http */, 1);
+  test.ExpectTotalCount(kMainFrameSchemeOTR, 1);
+  test.ExpectUniqueSample(kMainFrameSchemeOTR, 1 /* http */, 1);
+  test.ExpectTotalCount(kMainFrameSchemeDifferentPageOTR, 1);
+  test.ExpectUniqueSample(kMainFrameSchemeDifferentPageOTR, 1 /* http */, 1);
+}
+
+TEST(NavigationMetrics, MainFrameSchemeSameDocumentOTR) {
+  base::HistogramTester test;
+
+  RecordMainFrameNavigation(GURL(kTestUrl), true, true);
+
+  test.ExpectTotalCount(kMainFrameScheme, 1);
+  test.ExpectUniqueSample(kMainFrameScheme, 1 /* http */, 1);
+  test.ExpectTotalCount(kMainFrameSchemeDifferentPage, 0);
+  test.ExpectTotalCount(kMainFrameSchemeOTR, 1);
+  test.ExpectUniqueSample(kMainFrameSchemeOTR, 1 /* http */, 1);
+  test.ExpectTotalCount(kMainFrameSchemeDifferentPageOTR, 0);
 }
 
 }  // namespace navigation_metrics