Collect tab timing information for use in telementry-based startup tests

chrome/test/perf/page_cycler_test.cc

Index: chrome/test/perf/page_cycler_test.cc
diff --git a/chrome/test/perf/page_cycler_test.cc b/chrome/test/perf/page_cycler_test.cc
index 4354faf8d89eeedd5589142a474cedcdd3757728..fc282fba4d6d1a66526741f5ff055f74eda8a0cf 100644
--- a/chrome/test/perf/page_cycler_test.cc
+++ b/chrome/test/perf/page_cycler_test.cc
@@ -130,6 +130,7 @@ class PageCyclerTest : public UIPerfTest {
                      num_test_iterations_(kTestIterations) {
     show_window_ = true;
     dom_automation_enabled_ = true;
+    stats_collection_extension_enabled_ = true;
 
     const CommandLine& parsed_command_line = *CommandLine::ForCurrentProcess();
     if (parsed_command_line.HasSwitch(switches::kPageCyclerIterations)) {
@@ -277,8 +278,8 @@ class PageCyclerTest : public UIPerfTest {
     ASSERT_TRUE(tab->ExecuteAndExtractString(
         L"",
         L"window.domAutomationController.send("
-        L"window.domAutomationController.getHistogram ? "
-        L"window.domAutomationController.getHistogram(\"" +
+        L"window.statsCollectionExtension.getHistogram ? "
+        L"window.statsCollectionExtension.getHistogram(\"" +
         base::SysUTF8ToWide(name) + L"\") : '')",
         &whistogram));
     std::string histogram = base::SysWideToNativeMB(whistogram);