Proposed alternative for supporting ChromeVox keyboard commands.

ui/events/test/event_generator.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef UI_EVENTS_TEST_EVENT_GENERATOR_H_
 #define UI_EVENTS_TEST_EVENT_GENERATOR_H_
 
 #include <list>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/callback.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/time/time.h"
 #include "ui/events/event_constants.h"
 #include "ui/events/keycodes/keyboard_codes.h"
 #include "ui/gfx/geometry/point.h"
 #include "ui/gfx/native_widget_types.h"
 
 namespace base {
 class TickClock;
 }
 
 namespace ui {
 class Event;
 class EventProcessor;
+class EventRewriter;
 class EventSource;
 class EventTarget;
 class KeyEvent;
 class MouseEvent;
 class ScrollEvent;
 class TouchEvent;
 
 namespace test {
 
 typedef base::Callback<void(EventType, const gfx::Vector2dF&)>
@@ skipping 305 matching lines @@
 
   // Generates a key release event. On platforms except Windows and X11, a key
   // event without native_event() is generated. Note that ui::EF_ flags should
   // be passed as |flags|, not the native ones like 'ShiftMask' in <X11/X.h>.
   // TODO(yusukes): Support native_event() on all platforms.
   void ReleaseKey(KeyboardCode key_code, int flags);
 
   // Dispatch the event to the WindowEventDispatcher.
   void Dispatch(Event* event);
 
+  // Add an EventRewriter to the currentEventSource.

[sadrul, 2015/06/24 18:31:02]

What is currentEventSource?

[David Tseng, 2015/06/24 19:09:54]

Obsolete.

+  void AddEventRewriter(ui::EventRewriter* event_rewriter);
+
+  // Remove an EventRewriter from the currentEventSource.
+  void RemoveEventRewriter(ui::EventRewriter* event_rewriter);
+
   void set_current_target(EventTarget* target) {
     current_target_ = target;
   }
 
   // Specify an alternative tick clock to be used for simulating time in tests.
   void SetTickClock(scoped_ptr<base::TickClock> tick_clock);
 
   // Get the current time from the tick clock.
   base::TimeDelta Now();
 
@@ skipping 31 matching lines @@
   bool targeting_application_;
   scoped_ptr<base::TickClock> tick_clock_;
 
   DISALLOW_COPY_AND_ASSIGN(EventGenerator);
 };
 
 }  // namespace test
 }  // namespace ui
 
 #endif  // UI_EVENTS_TEST_EVENT_GENERATOR_H_