Removing Page.WaitToLoad and update all pagesets to use explicit wait actions

tools/perf/page_sets/top_25.json

Index: tools/perf/page_sets/top_25.json
diff --git a/tools/perf/page_sets/top_25.json b/tools/perf/page_sets/top_25.json
index 3f47fa6f30f6c683352449023e19a7a2ee6eea94..9bfc2675212ddd5361bb690102a7057b2590cbef 100644
--- a/tools/perf/page_sets/top_25.json
+++ b/tools/perf/page_sets/top_25.json
@@ -8,64 +8,69 @@
     {
       "url": "https://www.google.com/#hl=en&q=barack+obama",
       "why": "top google property; a google tab is often open",
-      "wait_for_element_with_text": "Next",
+      "navigate_steps" : [
+        { "action": "navigate" },
+        { "action": "wait", "condition": "element", "text": "Next"}
+      ],
       "stress_memory": [
         { "action": "scroll" },
         {
           "action": "click_element",
           "text": "Next",
-          "wait_for_href_change": true,
-          "wait_for_element_with_text": "Next"
+          "wait_for_href_change": true
         },
+        { "action": "wait", "condition": "element", "text": "Next" },
         { "action": "scroll" },
         {
           "action": "click_element",
           "text": "Next",
-          "wait_for_href_change": true,
-          "wait_for_element_with_text": "Next"
+          "wait_for_href_change": true
         },
+        { "action": "wait", "condition": "element", "text": "Next" },
         { "action": "scroll" },
         {
           "action": "click_element",
           "text": "Next",
-          "wait_for_href_change": true,
-          "wait_for_element_with_text": "Previous"
+          "wait_for_href_change": true
         },
+        { "action": "wait", "condition": "element", "text": "Previous" },
         { "action": "scroll" },
         {
           "action": "click_element",
           "text": "Previous",
-          "wait_for_href_change": true,
-          "wait_for_element_with_text": "Previous"
+          "wait_for_href_change": true
         },
+        { "action": "wait", "condition": "element", "text": "Previous" },
         { "action": "scroll" },
         {
           "action": "click_element",
           "text": "Previous",
-          "wait_for_href_change": true,
-          "wait_for_element_with_text": "Previous"
+          "wait_for_href_change": true
         },
+        { "action": "wait", "condition": "element", "text": "Previous" },
         { "action": "scroll" },
         {
           "action": "click_element",
           "text": "Previous",
-          "wait_for_href_change": true,
-          "wait_for_element_with_text": "Images"
+          "wait_for_href_change": true
         },
+        { "action": "wait", "condition": "element", "text": "Images" },
         { "action": "scroll" },
         {
           "action": "click_element",
           "text": "Images",
-          "wait_for_href_change": true,
-          "wait_for_element_with_text": "Images"
-        }
+          "wait_for_href_change": true        },
+        { "action": "wait", "condition": "element", "text": "Images" }
       ]
     },
     {
       "url": "https://mail.google.com/mail/",
       "why": "productivity, top google properties",
       "credentials": "google",
-      "wait_for_javascript_expression": "window.gmonkey !== undefined && document.getElementById('gb') !== null",
+      "navigate_steps" : [
+        { "action": "navigate" },
+        { "action": "wait", "condition": "javascript", "javascript": "window.gmonkey !== undefined && document.getElementById('gb') !== null"}
+      ],
       "smoothness": {
         "action": "scroll",
         "scrollable_element_function": "function(callback) { gmonkey.load('2.0', function(api) { callback(api.getScrollableElement()); }); }"
@@ -87,9 +92,12 @@
       "url": "https://www.google.com/calendar/",
       "why": "productivity, top google properties",
       "credentials": "google",
-      "wait_for_element_with_selector": "div[class~=\"navForward\"]",
-      "post_navigate_javascript_to_execute": "(function() { var elem = document.createElement('meta');elem.name='viewport';elem.content='initial-scale=1';document.body.appendChild(elem); })();",
-      "wait_seconds": 2,
+      "navigate_steps" : [
+        { "action": "navigate"},
+        { "action": "wait", "condition": "duration", "seconds":  2},
+        { "action": "wait", "condition": "element", "selector":  "div[class~=\"navForward\"]"},
+        { "action": "javascript", "expression": "(function() { var elem = document.createElement('meta');elem.name='viewport';elem.content='initial-scale=1';document.body.appendChild(elem); })();"}
+      ],
       "smoothness": {
         "action": "scroll",
         "scrollable_element_function": "function(callback) { callback(document.getElementById('scrolltimedeventswk')); }"
@@ -97,59 +105,62 @@
       "stress_memory": [
         {
           "action": "click_element",
-          "selector": "div[class~=\"navForward\"]",
-          "wait_for_seconds": 2,
-          "wait_for_element_with_selector": "div[class~=\"navForward\"]"
+          "selector": "div[class~=\"navForward\"]"
         },
+        { "action": "wait", "condition": "duration", "seconds": 2 },
+        { "action": "wait", "condition": "element", "selector": "div[class~=\"navForward\"]" },
         {
           "action": "click_element",
-          "selector": "div[class~=\"navForward\"]",
-          "wait_for_seconds": 2,
-          "wait_for_element_with_selector": "div[class~=\"navForward\"]"
+          "selector": "div[class~=\"navForward\"]"
         },
+        { "action": "wait", "condition": "duration", "seconds": 2 },
+        { "action": "wait", "condition": "element", "selector": "div[class~=\"navForward\"]" },
         {
           "action": "click_element",
-          "selector": "div[class~=\"navForward\"]",
-          "wait_for_seconds": 2,
-          "wait_for_element_with_selector": "div[class~=\"navForward\"]"
+          "selector": "div[class~=\"navForward\"]"
         },
+        { "action": "wait", "condition": "duration", "seconds": 2 },
+        { "action": "wait", "condition": "element", "selector": "div[class~=\"navForward\"]" },
         {
           "action": "click_element",
-          "selector": "div[class~=\"navForward\"]",
-          "wait_for_seconds": 2,
-          "wait_for_element_with_selector": "div[class~=\"navBack\"]"
+          "selector": "div[class~=\"navForward\"]"
         },
+        { "action": "wait", "condition": "duration", "seconds": 2 },
+        { "action": "wait", "condition": "element", "selector": "div[class~=\"navBack\"]" },
         {
           "action": "click_element",
-          "selector": "div[class~=\"navBack\"]",
-          "wait_for_seconds": 2,
-          "wait_for_element_with_selector": "div[class~=\"navBack\"]"
+          "selector": "div[class~=\"navBack\"]"
         },
+        { "action": "wait", "condition": "duration", "seconds": 2 },
+        { "action": "wait", "condition": "element", "selector": "div[class~=\"navBack\"]" },
         {
           "action": "click_element",
-          "selector": "div[class~=\"navBack\"]",
-          "wait_for_seconds": 2,
-          "wait_for_element_with_selector": "div[class~=\"navBack\"]"
+          "selector": "div[class~=\"navBack\"]"
         },
+        { "action": "wait", "condition": "duration", "seconds": 2 },
+        { "action": "wait", "condition": "element", "selector": "div[class~=\"navBack\"]" },
         {
           "action": "click_element",
-          "selector": "div[class~=\"navBack\"]",
-          "wait_for_seconds": 2,
-          "wait_for_element_with_selector": "div[class~=\"navBack\"]"
+          "selector": "div[class~=\"navBack\"]"
         },
+        { "action": "wait", "condition": "duration", "seconds": 2 },
+        { "action": "wait", "condition": "element", "selector": "div[class~=\"navBack\"]" },
         {
           "action": "click_element",
-          "selector": "div[class~=\"navBack\"]",
-          "wait_for_seconds": 2,
-          "wait_for_element_with_selector": "div[class~=\"navBack\"]"
-        }
+          "selector": "div[class~=\"navBack\"]"
+        },
+        { "action": "wait", "condition": "duration", "seconds": 2 },
+        { "action": "wait", "condition": "element", "selector": "div[class~=\"navBack\"]" }
       ]
     },
     {
       "url": "https://drive.google.com",
       "why": "productivity, top google properties",
       "credentials": "google",
-      "wait_for_javascript_expression": "document.getElementsByClassName('doclistview-list').length",
+      "navigate_steps" : [
+        { "action": "navigate"},
+        { "action": "wait", "condition": "javascript", "javascript": "document.getElementsByClassName('doclistview-list').length"}
+      ],
       "smoothness": {
         "action": "scroll",
         "scrollable_element_function": "function(callback) { callback(document.getElementsByClassName('doclistview-list')[0]); }"
@@ -160,8 +171,11 @@
       "url": "https://docs.google.com/document/d/1X-IKNjtEnx-WW5JIKRLsyhz5sbsat3mfTpAPUSX3_s4/view",
       "why": "productivity, top google properties; Sample doc in the link",
       "credentials": "google",
-      "wait_for_javascript_expression": "document.getElementsByClassName('kix-appview-editor').length",
-      "wait_seconds": 2,
+      "navigate_steps" : [
+        { "action": "navigate"},
+        { "action": "wait", "condition": "duration", "seconds": 2},
+        { "action": "wait", "condition": "javascript", "javascript": "document.getElementsByClassName('kix-appview-editor').length"}
+      ],
       "smoothness": {
         "action": "scroll",
         "scrollable_element_function": "function(callback) { callback(document.getElementsByClassName('kix-appview-editor')[0]); }"
@@ -171,112 +185,106 @@
       "url": "https://plus.google.com/110031535020051778989/posts",
       "why": "social; top google property; Public profile; infinite scrolls",
       "credentials": "google",
-      "wait_for_element_with_text": "Home",
+      "navigate_steps" : [
+        { "action": "navigate"},
+        { "action": "wait", "condition": "element", "text": "Home"}
+      ],
       "smoothness": {
         "action": "scroll",
         "scroll_is_infinite": true
       },
       "stress_memory": [
-        {
-          "action": "click_element",
-          "text": "Home",
-          "wait_seconds": 2,
-          "wait_for_element_with_text": "Profile"
-        },
-        {
-          "action": "click_element",
-          "text": "Profile",
-          "wait_seconds": 2,
-          "wait_for_element_with_text": "Explore"
-        },
-        {
-          "action": "click_element",
-          "text": "Explore",
-          "wait_seconds": 2,
-          "wait_for_element_with_text": "Events"
-        },
-        {
-          "action": "click_element",
-          "text": "Events",
-          "wait_seconds": 2,
-          "wait_for_element_with_text": "Communities"
-        },
-        {
-          "action": "click_element",
-          "text": "Communities",
-          "wait_seconds": 2,
-          "wait_for_element_with_text": "Home"
-        }
+        { "action": "click_element", "text": "Home"},
+        { "action": "wait", "condition": "duration", "seconds": 2},
+        { "action": "wait", "condition": "element", "text": "Profile"},
+        { "action": "click_element", "text": "Profile"},
+        { "action": "wait", "condition": "duration", "seconds": 2},
+        { "action": "wait", "condition": "element", "text": "Explore"},
+        { "action": "click_element", "text": "Explore"},
+        { "action": "wait", "condition": "duration", "seconds": 2},
+        { "action": "wait", "condition": "element", "text": "Events"},
+        { "action": "click_element", "text": "Events"},
+        { "action": "wait", "condition": "duration", "seconds": 2},
+        { "action": "wait", "condition": "element", "text": "Communities"},
+        { "action": "click_element", "text": "Communities"},
+        { "action": "wait", "condition": "duration", "seconds": 2},
+        { "action": "wait", "condition": "element", "text": "Home"}
       ]
     },
     {
       "url": "http://www.youtube.com",
       "why": "#3 (Alexa global)",
-      "wait_seconds": 2,
+      "navigate_steps" : [
+        { "action": "navigate"}, { "action": "wait", "condition": "time", "seconds": 2}
+      ],
       "credentials": "google"
     },
     {
       "name": "Blogger",
       "url": "http://googlewebmastercentral.blogspot.com/",
       "why": "#11 (Alexa global), google property; some blogger layouts have infinite scroll but more interesting",
-      "wait_for_element_with_text": "accessibility",
+      "navigate_steps" : [
+        { "action": "navigate"}, { "action": "wait", "condition": "element", "text": "accessibility"}
+      ],
       "stress_memory": [
         {
           "action": "click_element",
           "text": "accessibility",
-          "wait_for_navigate": true,
-          "wait_for_element_with_text": "advanced"
+          "wait_for_navigate": true
         },
+        { "action": "wait", "condition": "element", "text": "advanced"},
         { "action": "scroll" },
         {
           "action": "click_element",
           "text": "advanced",
-          "wait_for_navigate": true,
-          "wait_for_element_with_text": "beginner"
+          "wait_for_navigate": true
         },
+        { "action": "wait", "condition": "element", "text": "beginner"},
         { "action": "scroll" },
         {
           "action": "click_element",
           "text": "beginner",
-          "wait_for_navigate": true,
-          "wait_for_element_with_text": "Home"
+          "wait_for_navigate": true
         },
+        { "action": "wait", "condition": "element", "text": "Home"},
         { "action": "scroll" },
         {
           "action": "click_element",
           "text": "Home",
-          "wait_for_navigate": true,
-          "wait_for_element_with_text": "Home"
-        }
+          "wait_for_navigate": true
+        },
+        { "action": "wait", "condition": "element", "text": "Home"}
       ]
     },
     {
       "name": "Wordpress",
       "url": "http://en.blog.wordpress.com/2012/09/04/freshly-pressed-editors-picks-for-august-2012/",
       "why": "#18 (Alexa global), Picked an interesting post",
-      "wait_for_element_with_selector": "a[href=\"http://en.blog.wordpress.com/2012/08/30/new-themes-able-and-sight/\"]",
+      "navigate_steps" : [
+        { "action": "navigate"}, { "action": "wait", "condition": "element", "selector": "a[href=\"http://en.blog.wordpress.com/2012/08/30/new-themes-able-and-sight/\"]"}
+      ],
       "stress_memory": [
         { "action": "scroll" },
         {
           "action": "click_element",
           "selector": "a[href=\"http://en.blog.wordpress.com/2012/08/30/new-themes-able-and-sight/\"]",
-          "wait_for_navigate": true,
-          "wait_for_element_with_text": "Features"
+          "wait_for_navigate": true
         },
+        { "action": "wait", "condition": "element", "text":  "Features"},
         { "action": "scroll" },
         {
           "action": "click_element",
           "text": "Features",
-          "wait_for_navigate": true,
-          "wait_for_element_with_text": "News"
+          "wait_for_navigate": true
         },
+        { "action": "wait", "condition": "element", "text":  "News"},
         { "action": "scroll" },
         {
           "action": "click_element",
           "text": "News",
-          "wait_for_navigate": true,
-          "wait_for_element_with_text": "News"
+          "wait_for_navigate": true
         },
+        { "action": "wait", "condition": "element", "text": "News" },
         { "action": "scroll" }
       ]
     },
@@ -285,7 +293,9 @@
       "url": "http://www.facebook.com/barackobama",
       "why": "top social,Public profile",
       "credentials": "facebook",
-      "wait_for_element_with_text": "About",
+      "navigate_steps" : [
+        { "action": "navigate"}, { "action": "wait", "condition": "element", "text": "About"}
+      ],
       "smoothness": {
         "action": "scroll",
         "scroll_is_infinite": true
@@ -294,39 +304,39 @@
         {
           "action": "click_element",
           "text": "About",
-          "wait_for_navigate": true,
-          "wait_for_element_with_text": "The Audacity of Hope"
+          "wait_for_navigate": true
         },
+        { "action": "wait", "condition": "element", "text": "The Audacity of Hope"},
         {
           "action": "click_element",
           "text": "The Audacity of Hope",
-          "wait_for_navigate": true,
-          "wait_for_element_with_text": "Back to Barack Obama's Timeline"
+          "wait_for_navigate": true
         },
+        { "action": "wait", "condition": "element", "text": "Back to Barack Obama's Timeline"},
         {
           "action": "click_element",
           "text": "Back to Barack Obama's Timeline",
-          "wait_for_navigate": true,
-          "wait_for_element_with_text": "About"
+          "wait_for_navigate": true
         },
+        { "action": "wait", "condition": "element", "text": "About"},
         {
           "action": "click_element",
           "text": "About",
-          "wait_for_navigate": true,
-          "wait_for_element_with_text": "Elected to U.S. Senate"
+          "wait_for_navigate": true
         },
+        { "action": "wait", "condition": "element", "text": "Elected to U.S. Senate"},
         {
           "action": "click_element",
           "text": "Elected to U.S. Senate",
-          "wait_for_navigate": true,
-          "wait_for_element_with_text": "Home"
+          "wait_for_navigate": true
         },
+        { "action": "wait", "condition": "element", "text": "Home"},
         {
           "action": "click_element",
           "text": "Home",
-          "wait_for_navigate": true,
-          "wait_for_element_with_text": "Home"
-        }
+          "wait_for_navigate": true
+        },
+        { "action": "wait", "condition": "element", "text": "Home"}
       ]
     },
     {
@@ -343,7 +353,9 @@
       "name": "Twitter",
       "url": "https://twitter.com/katyperry",
       "why": "#8 (Alexa global),Picked an interesting page",
-      "wait_seconds": 2,
+      "navigate_steps" : [
+        { "action": "navigate"}, { "action": "wait", "condition": "duration", "seconds": 2}
+      ],
       "smoothness": {
         "action": "scroll",
         "scroll_is_infinite": true
@@ -391,7 +403,9 @@
     {
       "url": "http://games.yahoo.com",
       "why": "#1 games according to Alexa (with actual games in it)",
-      "wait_seconds": 2
+      "navigate_steps" : [
+        { "action": "navigate"}, { "action": "wait", "condition": "duration", "seconds": 2}
+      ]
     },
     {
       "url": "http://booking.com",