New pages added to smoothness.key_mobile_sites.py

BUG=391005

Review URL: https://codereview.chromium.org/525493003

Cr-Commit-Position: refs/heads/master@{#292879}

tools/perf/page_sets/data/key_mobile_sites.json

@@ -4,15 +4,20 @@
         "key_mobile_sites_005.wpr": [
             "http://mobile-news.sandbox.google.com/news/pt0"
         ], 
+        "key_mobile_sites_007.wpr": [
+            "http://ftw.usatoday.com/2014/05/spelling-bee-rules-shenanigans", 
+            "http://www.latimes.com", 
+            "http://m.espn.go.com/nhl/rankings"
+        ], 
         "key_mobile_sites_001.wpr": [
             "http://mobile-news.sandbox.google.com/news/p#2"
         ], 
-        "key_mobile_sites_004.wpr": [
-            "http://groupcloned.com/test/list-images-variable/index.html"
-        ], 
         "key_mobile_sites_003.wpr": [
             "https://facebook.com/barackobama"
         ], 
+        "key_mobile_sites_004.wpr": [
+            "http://groupcloned.com/test/list-images-variable/index.html"
+        ], 
         "key_mobile_sites_006.wpr": [
             "http://mobile-news.sandbox.google.com/news/pt1"
         ], 

tools/perf/page_sets/data/key_mobile_sites_007.wpr.sha1

+69ba05868c1d6d2e0f5576b8af2b67912fad6f16
\ No newline at end of file

tools/perf/page_sets/key_mobile_sites.py

@@ -538,7 +538,13 @@ class KeyMobileSitesPageSet(page_set_module.PageSet):
       ('http://www.baidu.com/s?wd=barack+obama&rsv_bp=0&rsv_spt=3&rsv_sug3=9&'
        'rsv_sug=0&rsv_sug4=3824&rsv_sug1=3&inputT=4920'),
       # Why: Top search engine
-      'http://www.bing.com/search?q=sloths'
+      'http://www.bing.com/search?q=sloths',
+      # Why: Good example of poor initial scrolling
+      'http://www.latimes.com',
+      # Why: Good example of poor initial scrolling
+      'http://ftw.usatoday.com/2014/05/spelling-bee-rules-shenanigans',
+      # Why: Good example of poor initial scrolling
+      'http://m.espn.go.com/nhl/rankings'
     ]
 
     for url in urls_list: