Set keys for SwitchAccessEventHandler to capture using accessibiltyPrivate API

chrome/browser/chromeos/accessibility/switch_access_event_handler.h

Index: chrome/browser/chromeos/accessibility/switch_access_event_handler.h
diff --git a/chrome/browser/chromeos/accessibility/switch_access_event_handler.h b/chrome/browser/chromeos/accessibility/switch_access_event_handler.h
index 331f8363bbe4ae99c1e9284979c711a4db0cae68..98361a8f8c6a77e8806dd01a8643d5af05b64df5 100644
--- a/chrome/browser/chromeos/accessibility/switch_access_event_handler.h
+++ b/chrome/browser/chromeos/accessibility/switch_access_event_handler.h
@@ -5,6 +5,8 @@
 #ifndef CHROME_BROWSER_CHROMEOS_ACCESSIBILITY_SWITCH_ACCESS_EVENT_HANDLER_H_
 #define CHROME_BROWSER_CHROMEOS_ACCESSIBILITY_SWITCH_ACCESS_EVENT_HANDLER_H_
 
+#include <string>
+
 #include "base/macros.h"
 #include "ui/events/event_handler.h"
 
@@ -22,6 +24,8 @@ class SwitchAccessEventHandler : public ui::EventHandler {
   SwitchAccessEventHandler();
   ~SwitchAccessEventHandler() override;
 
+  void SetKeysToCapture(const std::vector<int>& key_codes);
+
  private:
   // EventHandler:
   void OnKeyEvent(ui::KeyEvent* event) override;
@@ -29,6 +33,8 @@ class SwitchAccessEventHandler : public ui::EventHandler {
   void CancelEvent(ui::Event* event);
   void DispatchKeyEventToSwitchAccess(const ui::KeyEvent& event);
 
+  std::vector<int> captured_keys_;
+
   DISALLOW_COPY_AND_ASSIGN(SwitchAccessEventHandler);
 };