Input Injection API on Ozone

ui/events/ozone/evdev/event_factory_evdev.h

Index: ui/events/ozone/evdev/event_factory_evdev.h
diff --git a/ui/events/ozone/evdev/event_factory_evdev.h b/ui/events/ozone/evdev/event_factory_evdev.h
index dace34b5b2973d0ca9809d33dd90bdf5d9b4af0a..baf454ba4590dfec53ed45112c646a238f043307 100644
--- a/ui/events/ozone/evdev/event_factory_evdev.h
+++ b/ui/events/ozone/evdev/event_factory_evdev.h
@@ -17,6 +17,7 @@
 #include "ui/events/ozone/evdev/keyboard_evdev.h"
 #include "ui/events/platform/platform_event_source.h"
 #include "ui/gfx/native_widget_types.h"
+#include "ui/ozone/public/system_input_injector.h"
 
 namespace gfx {
 class PointF;
@@ -26,6 +27,7 @@ namespace ui {
 
 class CursorDelegateEvdev;
 class DeviceManager;
+class SystemInputInjector;
 
 #if defined(USE_EVDEV_GESTURES)
 class GesturePropertyProvider;
@@ -42,6 +44,8 @@ class EVENTS_OZONE_EVDEV_EXPORT EventFactoryEvdev : public DeviceEventObserver,
   void WarpCursorTo(gfx::AcceleratedWidget widget,
                     const gfx::PointF& location);
 
+  scoped_ptr<SystemInputInjector> CreateSystemInputInjector();

[kelvinp, 2014/11/25 04:43:08]

Why CreateSystemInputInjector() instead of GetSystemInputInjector()?
A new instance of the input injector is created for each client so that we can
track the the modifiers applied by any particular client.  In this way, even if
a client sends a Ctrl down without a Ctrl Up, we can reset the modifiers when
the instance is destroyed to prevent modifier keys from getting stuck.

+
  protected:
   // DeviceEventObserver overrides:
   //