Create ActionRunner wrapper API over TapAction and ClickElementAction.

tools/perf/page_sets/gmail_expand_collapse_conversation.py

Index: tools/perf/page_sets/gmail_expand_collapse_conversation.py
diff --git a/tools/perf/page_sets/gmail_expand_collapse_conversation.py b/tools/perf/page_sets/gmail_expand_collapse_conversation.py
index f223e654d794fec0f978e1feaee20536eeba0875..769bdbbea3da496190c9da8caad42abc945c9709 100644
--- a/tools/perf/page_sets/gmail_expand_collapse_conversation.py
+++ b/tools/perf/page_sets/gmail_expand_collapse_conversation.py
@@ -26,30 +26,18 @@ class GmailExpandCollapseConversationPage(
   def RunNavigateSteps(self, action_runner):
     action_runner.NavigateToPage(self)
     action_runner.WaitForElement('img[alt="Expand all"]')
-    action_runner.RunAction(ClickElementAction(
-      {
-        'selector': 'img[alt="Expand all"]'
-      }))
+    action_runner.ClickElement('img[alt="Expand all"]')
     action_runner.Wait(5)
     action_runner.WaitForElement('img[alt="Collapse all"]')
-    action_runner.RunAction(ClickElementAction(
-      {
-        'selector': 'img[alt="Collapse all"]'
-      }))
+    action_runner.ClickElement('img[alt="Collapse all"]')
     action_runner.Wait(1)
 
   def RunEndure(self, action_runner):
     action_runner.WaitForElement('img[alt="Expand all"]')
-    action_runner.RunAction(ClickElementAction(
-      {
-        'selector': 'img[alt="Expand all"]'
-      }))
+    action_runner.ClickElement('img[alt="Expand all"]')
     action_runner.Wait(1)
     action_runner.WaitForElement('img[alt="Collapse all"]')
-    action_runner.RunAction(ClickElementAction(
-      {
-        'selector': 'img[alt="Collapse all"]'
-      }))
+    action_runner.ClickElement('img[alt="Collapse all"]')
     action_runner.Wait(1)