Compressed activity log database storage

chrome/browser/extensions/activity_log/fullstream_ui_policy.h

Index: chrome/browser/extensions/activity_log/fullstream_ui_policy.h
diff --git a/chrome/browser/extensions/activity_log/fullstream_ui_policy.h b/chrome/browser/extensions/activity_log/fullstream_ui_policy.h
index 49a8b700c8fe1d8286157c648419aae2cc55a8fc..571dd9c332f479791db9cf00ddbd36ef93761b9c 100644
--- a/chrome/browser/extensions/activity_log/fullstream_ui_policy.h
+++ b/chrome/browser/extensions/activity_log/fullstream_ui_policy.h
@@ -9,6 +9,7 @@
 
 #include "chrome/browser/extensions/activity_log/activity_database.h"
 #include "chrome/browser/extensions/activity_log/activity_log_policy.h"
+#include "chrome/browser/extensions/activity_log/database_interned_string.h"
 
 class GURL;
 
@@ -63,6 +64,12 @@ class FullStreamUIPolicy : public ActivityLogDatabasePolicy {
   virtual scoped_refptr<Action> ProcessArguments(
       scoped_refptr<Action> action) const;
 
+  // Tables for mapping strings to integers for shrinking database storage
+  // requirements.  URLs are kept in a separate table from other strings to
+  // make history clearing simpler.
+  DatabaseStringTable string_table_;
+  DatabaseStringTable url_table_;
+
   // Tracks any pending updates to be written to the database, if write
   // batching is turned on.  Should only be accessed from the database thread.
   Action::ActionVector queued_actions_;