Adding Maps page to page_sets for telemetry.

tools/perf/page_sets/top_pages.py

Index: tools/perf/page_sets/top_pages.py
diff --git a/tools/perf/page_sets/top_pages.py b/tools/perf/page_sets/top_pages.py
index 582cf986c3730dc44f3ddabebf83542cf59e1f6e..99a9b8c83a41963ae87da801b405bf5b7e374ff6 100644
--- a/tools/perf/page_sets/top_pages.py
+++ b/tools/perf/page_sets/top_pages.py
@@ -99,6 +99,17 @@ class GoogleDocPage(TopPages):
         'document.getElementsByClassName("kix-appview-editor").length')
 
 
+class GoogleMapsPage(TopPages):
+
+  """ Why: productivity, top google properties; drag and drop anywhere """
+
+  def __init__(self, page_set):
+    super(GoogleMapsPage, self).__init__(
+        url='https://www.google.com/maps',
+        page_set=page_set,
+        name='Maps')
+
+
 class GooglePlusPage(TopPages):
 
   """ Why: social; top google property; Public profile; infinite scrolls """