Dump property values for the touch log source

ui/ozone/public/input_controller.h

Index: ui/ozone/public/input_controller.h
diff --git a/ui/ozone/public/input_controller.h b/ui/ozone/public/input_controller.h
index 4cb04fd95cc3d47deefc8a2a637b6199f5b6e95e..50893f6c9483cbd1b7660c3f75b02b76927bf386 100644
--- a/ui/ozone/public/input_controller.h
+++ b/ui/ozone/public/input_controller.h
@@ -6,7 +6,9 @@
 #define UI_OZONE_PUBLIC_INPUT_CONTROLLER_H_
 
 #include <set>
+#include <string>
 
+#include "base/callback.h"
 #include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
 #include "ui/ozone/ozone_export.h"
@@ -26,6 +28,8 @@ enum class DomCode;
 // script that is originally located at /opt/google/chrome/.
 class OZONE_EXPORT InputController {
  public:
+  typedef base::Callback<void(std::string*)> GetTouchDeviceStatusReply;
+
   InputController() {}
   virtual ~InputController() {}
 
@@ -55,6 +59,9 @@ class OZONE_EXPORT InputController {
   virtual void SetMouseSensitivity(int value) = 0;
   virtual void SetPrimaryButtonRight(bool right) = 0;
 
+  // Touch log collection.
+  virtual void GetTouchDeviceStatus(const GetTouchDeviceStatusReply& reply) = 0;
+
   // Temporarily enable/disable Tap-to-click. Used to enhance the user
   // experience in some use cases (e.g., typing, watching video).
   virtual void SetTapToClickPaused(bool state) = 0;