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..0a1d3b8e57eb97b05f4596083245a70d6a075cc9 100644
--- a/ui/ozone/public/input_controller.h
+++ b/ui/ozone/public/input_controller.h
@@ -6,6 +6,7 @@
 #define UI_OZONE_PUBLIC_INPUT_CONTROLLER_H_
 
 #include <set>
+#include <string>
 
 #include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
@@ -55,6 +56,9 @@ class OZONE_EXPORT InputController {
   virtual void SetMouseSensitivity(int value) = 0;
   virtual void SetPrimaryButtonRight(bool right) = 0;
 
+  // Touch log collection.
+  virtual std::string GetGestureDeviceStatus() = 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;