Convert orientation values in input to ui::Rotation.

ui::Rotation both provides better typesafety as well as some convenience
functions (e.g. operator+, operator-).

Test: atest TouchVideoFrame_test.cpp InputReader_test.cpp
Change-Id: Ib423457c742ed3d41f2e3fc269ddf86809cbf247
diff --git a/services/inputflinger/reader/mapper/TouchInputMapper.h b/services/inputflinger/reader/mapper/TouchInputMapper.h
index 3962b2a..34ba625 100644
--- a/services/inputflinger/reader/mapper/TouchInputMapper.h
+++ b/services/inputflinger/reader/mapper/TouchInputMapper.h
@@ -17,6 +17,7 @@
 #pragma once
 
 #include <stdint.h>
+#include <ui/Rotation.h>
 
 #include "CursorButtonAccumulator.h"
 #include "CursorScrollAccumulator.h"
@@ -218,15 +219,7 @@
         bool associatedDisplayIsExternal;
         bool orientationAware;
 
-        enum class Orientation : int32_t {
-            ORIENTATION_0 = DISPLAY_ORIENTATION_0,
-            ORIENTATION_90 = DISPLAY_ORIENTATION_90,
-            ORIENTATION_180 = DISPLAY_ORIENTATION_180,
-            ORIENTATION_270 = DISPLAY_ORIENTATION_270,
-
-            ftl_last = ORIENTATION_270
-        };
-        Orientation orientation;
+        ui::Rotation orientation;
 
         bool hasButtonUnderPad;
         std::string uniqueDisplayId;
@@ -424,7 +417,7 @@
     // The orientation of the input device relative to that of the display panel. It specifies
     // the rotation of the input device coordinates required to produce the display panel
     // orientation, so it will depend on whether the device is orientation aware.
-    int32_t mInputDeviceOrientation;
+    ui::Rotation mInputDeviceOrientation;
 
     // Translation and scaling factors, orientation-independent.
     float mXScale;