CPM Page Load timing

chrome/browser/performance_monitor/performance_monitor_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 "base/command_line.h"
 #include "base/file_path.h"
 #include "base/logging.h"
 #include "base/path_service.h"
 #include "base/string_number_conversions.h"
 #include "base/threading/sequenced_worker_pool.h"
@@ skipping 683 matching lines @@
 
   Database::MetricInfoVector metrics = GetStats(METRIC_TEST_STARTUP_TIME);
   ASSERT_EQ(1u, metrics.size());
   ASSERT_LT(metrics[0].value, kMaxStartupTime.ToInternalValue());
 
   metrics = GetStats(METRIC_SESSION_RESTORE_TIME);
   ASSERT_EQ(1u, metrics.size());
   ASSERT_LT(metrics[0].value, kMaxStartupTime.ToInternalValue());
 }
 
+IN_PROC_BROWSER_TEST_F(PerformanceMonitorBrowserTest, PageLoadTime) {
+  const base::TimeDelta kMaxLoadTime = base::TimeDelta::FromSeconds(30);
+
+  ui_test_utils::NavigateToURL(
+      browser(),
+      ui_test_utils::GetTestUrl(FilePath(FilePath::kCurrentDirectory),
+                                FilePath(FILE_PATH_LITERAL("title1.html"))));
+
+  ui_test_utils::NavigateToURL(
+      browser(),
+      ui_test_utils::GetTestUrl(FilePath(FilePath::kCurrentDirectory),
+                                FilePath(FILE_PATH_LITERAL("title2.html"))));
+
+  Database::MetricInfoVector metrics = GetStats(METRIC_PAGE_LOAD_TIME);
+
+  ASSERT_EQ(2u, metrics.size());
+  ASSERT_LT(metrics[0].value, kMaxLoadTime.ToInternalValue());
+  ASSERT_LT(metrics[1].value, kMaxLoadTime.ToInternalValue());
+}
+
 }  // namespace performance_monitor