[Ozone-Evdev] Propagate touchscreen device information to DeviceDataManager

ui/events/ozone/evdev/event_converter_evdev.h

Index: ui/events/ozone/evdev/event_converter_evdev.h
diff --git a/ui/events/ozone/evdev/event_converter_evdev.h b/ui/events/ozone/evdev/event_converter_evdev.h
index f2a162da18c3743ad6898aba23695f0aaac387d0..b4b2463fdecc053cb77d499e79f9ad4a3c50115e 100644
--- a/ui/events/ozone/evdev/event_converter_evdev.h
+++ b/ui/events/ozone/evdev/event_converter_evdev.h
@@ -9,6 +9,7 @@
 #include "base/files/file_path.h"
 #include "base/message_loop/message_loop.h"
 #include "ui/events/ozone/evdev/events_ozone_evdev_export.h"
+#include "ui/gfx/geometry/size.h"
 
 namespace ui {
 
@@ -19,15 +20,24 @@ typedef base::Callback<void(Event*)> EventDispatchCallback;
 class EVENTS_OZONE_EVDEV_EXPORT EventConverterEvdev
     : public base::MessagePumpLibevent::Watcher {
  public:
-  EventConverterEvdev(int fd, const base::FilePath& path);
+  EventConverterEvdev(int fd, const base::FilePath& path, int id);
   virtual ~EventConverterEvdev();
 
+  int id() const { return id_; }
+
   // Start reading events.
   void Start();
 
   // Stop reading events.
   void Stop();
 
+  // Returns true of the converter is used for a touchscreen device.
+  virtual bool HasTouchscreen() const;
+
+  // Returns the size of the touchscreen device if the converter is used for a
+  // touchscreen device.
+  virtual gfx::Size GetTouchscreenSize() const;
+
  protected:
   // base::MessagePumpLibevent::Watcher:
   virtual void OnFileCanWriteWithoutBlocking(int fd) OVERRIDE;
@@ -38,6 +48,9 @@ class EVENTS_OZONE_EVDEV_EXPORT EventConverterEvdev
   // Path to input device.
   base::FilePath path_;
 
+  // Uniquely identifies an event converter.
+  int id_;
+
   // Controller for watching the input fd.
   base::MessagePumpLibevent::FileDescriptorWatcher controller_;