Material PDF: Add metrics to count usage of PDF title and bookmarks

tools/metrics/actions/extract_actions.py

Index: tools/metrics/actions/extract_actions.py
diff --git a/tools/metrics/actions/extract_actions.py b/tools/metrics/actions/extract_actions.py
index 218c8f2afd2e26b6d7e9d345c651543859422a11..f36be9b61e63386108fe055c8f2f187205c3801a 100755
--- a/tools/metrics/actions/extract_actions.py
+++ b/tools/metrics/actions/extract_actions.py
@@ -191,14 +191,16 @@ def AddWebKitEditorActions(actions):
     if match:  # Plain call to RecordAction
       actions.add(match.group(1))
 
-def AddClosedSourceActions(actions):
-  """Add actions that are in code which is not checked out by default
+def AddPDFPluginActions(actions):
+  """Add actions that are sent by the PDF plugin.
 
   Arguments
     actions: set of actions to add to.
   """
   actions.add('PDF.FitToHeightButton')
   actions.add('PDF.FitToWidthButton')
+  actions.add('PDF.HasBookmarks')
+  actions.add('PDF.HasTitle')
   actions.add('PDF.LoadFailure')
   actions.add('PDF.LoadSuccess')
   actions.add('PDF.PreviewDocumentLoadFailure')
@@ -740,9 +742,9 @@ def UpdateXml(original_xml):
   AddAutomaticResetBannerActions(actions)
   AddBookmarkManagerActions(actions)
   AddChromeOSActions(actions)
-  AddClosedSourceActions(actions)
   AddExtensionActions(actions)
   AddHistoryPageActions(actions)
+  AddPDFPluginActions(actions)
 
   return PrettyPrint(actions, actions_dict, comment_nodes)