Updates display manager and display preferences to handle touch calibration data.

ui/display/manager/managed_display_info.h

Index: ui/display/manager/managed_display_info.h
diff --git a/ui/display/manager/managed_display_info.h b/ui/display/manager/managed_display_info.h
index 57c259b2806ca31792701a5ead4b577a88d07e81..ff530b0e36c0103021c2625dc881d048c58a581d 100644
--- a/ui/display/manager/managed_display_info.h
+++ b/ui/display/manager/managed_display_info.h
@@ -6,7 +6,7 @@
 #define UI_DISPLAY_MANAGER_MANAGED_DISPLAY_INFO_H_
 
 #include <stdint.h>
-
+#include <algorithm>
 #include <array>
 #include <map>
 #include <string>
@@ -34,6 +34,15 @@ struct DISPLAY_MANAGER_EXPORT TouchCalibrationData {
                        const gfx::Size& bounds);
   TouchCalibrationData(const TouchCalibrationData& calibration_data);
 
+  static bool CalibrationPointPairCompare(const CalibrationPointPair& pair_1,
+                                          const CalibrationPointPair& pair_2) {
+    return pair_1.first.y() < pair_2.first.y()
+               ? true
+               : pair_1.first.x() < pair_2.first.x();
+  }
+
+  bool operator==(TouchCalibrationData other) const;
+
   // Calibration point pairs used during calibration. Each point pair contains a
   // display point and the corresponding touch point.
   CalibrationPointPairQuad point_pairs;