Removing arguments from the activity log

chrome/browser/extensions/activity_log.h

Index: chrome/browser/extensions/activity_log.h
diff --git a/chrome/browser/extensions/activity_log.h b/chrome/browser/extensions/activity_log.h
index 2c01cd5495b3b29ff9a5e82ee0b33315f431d666..5fb64bc751892bf42fe978b49ea8cb18575e1a3b 100644
--- a/chrome/browser/extensions/activity_log.h
+++ b/chrome/browser/extensions/activity_log.h
@@ -12,6 +12,7 @@
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/callback.h"
+#include "base/hash_tables.h"
 #include "base/memory/singleton.h"
 #include "base/observer_list_threadsafe.h"
 #include "base/synchronization/lock.h"
@@ -199,6 +200,13 @@ class ActivityLog : public ProfileKeyedService,
   bool log_activity_to_stdout_;
   bool log_activity_to_ui_;
 
+  // log_arguments controls whether to log API call arguments. By default, we
+  // don't log most arguments to avoid saving too much data. In testing mode,
+  // argument collection is enabled. We also whitelist some arguments for
+  // collection regardless of whether this bool is true.
+  bool log_arguments_;
+  base::hash_set<std::string> arg_whitelist_api_;
+
   DISALLOW_COPY_AND_ASSIGN(ActivityLog);
 };