[Telemetry] Add tabswitching.typical_25 benchmark

“Scotty, we need more power.”

BUG=None

Review URL: https://codereview.chromium.org/334573002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@276679 0039d316-1c4b-4281-b951-d872f2087c98

tools/perf/benchmarks/tab_switching.py

@@ -12,6 +12,11 @@ class TabSwitchingTop10(test.Test):
   page_set = 'page_sets/top_10.py'
 
 
+class TabSwitchingTypical25(test.Test):
+  test = tab_switching.TabSwitching
+  page_set = 'page_sets/typical_25.py'
+
+
 class TabSwitchingFiveBlankTabs(test.Test):
   test = tab_switching.TabSwitching
   page_set = 'page_sets/five_blank_pages.py'