Revert of Port memory.long_running_idle_gmail benchmarks to TBMv2.

tools/perf/page_sets/long_running_idle_google_cases.py

Index: tools/perf/page_sets/long_running_idle_google_cases.py
diff --git a/tools/perf/page_sets/long_running_idle_google_cases.py b/tools/perf/page_sets/long_running_idle_google_cases.py
index 302cddf52617a1cf52e9642294046a10040aaa9c..9b46f8c2c96948e5f7db9439595ff795a735977a 100644
--- a/tools/perf/page_sets/long_running_idle_google_cases.py
+++ b/tools/perf/page_sets/long_running_idle_google_cases.py
@@ -6,20 +6,19 @@
 
 from page_sets import google_pages
 
+STARTUP_TIME_IN_SECONDS = 2
 IDLE_TIME_IN_SECONDS = 100
-SAMPLING_INTERVAL_IN_SECONDS = 1
-STEPS = IDLE_TIME_IN_SECONDS / SAMPLING_INTERVAL_IN_SECONDS
-
-def _IdleAction(action_runner):
-  action_runner.tab.browser.DumpMemory()
-  for _ in xrange(STEPS):
-    action_runner.Wait(SAMPLING_INTERVAL_IN_SECONDS)
-    action_runner.tab.browser.DumpMemory()
 
 def _CreateIdlePageClass(base_page_cls):
   class DerivedIdlePage(base_page_cls):  # pylint: disable=no-init
     def RunPageInteractions(self, action_runner):
-      _IdleAction(action_runner)
+      action_runner.Wait(STARTUP_TIME_IN_SECONDS)
+      with action_runner.CreateInteraction('Begin'):
+        action_runner.tab.browser.DumpMemory()
+      with action_runner.CreateInteraction('Idle'):
+        action_runner.Wait(IDLE_TIME_IN_SECONDS)
+      with action_runner.CreateInteraction('End'):
+        action_runner.tab.browser.DumpMemory()
   return DerivedIdlePage
 
 
@@ -27,7 +26,7 @@
   class DerivedIdlePage(base_page_cls):  # pylint: disable=no-init
     def RunPageInteractions(self, action_runner):
       action_runner.tab.browser.tabs.New()
-      _IdleAction(action_runner)
+      action_runner.Wait(IDLE_TIME_IN_SECONDS)
   return DerivedIdlePage