exo: Rotate cursor snapshot for rotated displays

ui/display/display.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/display/display.h"
 
 #include <algorithm>
 
 #include "base/command_line.h"
 #include "base/logging.h"
@@ skipping 97 matching lines @@
 #if defined(USE_AURA)
   SetScaleAndBounds(device_scale_factor_, bounds);
 #endif
 }
 
 Display::Display(const Display& other) = default;
 
 Display::~Display() {}
 
 int Display::RotationAsDegree() const {
-  switch (rotation_) {
-    case ROTATE_0:
-      return 0;
-    case ROTATE_90:
-      return 90;
-    case ROTATE_180:
-      return 180;
-    case ROTATE_270:
-      return 270;
-  }
-  NOTREACHED();
-  return 0;
+  return RotateToDegree(rotation_);
 }
 
 void Display::SetRotationAsDegree(int rotation) {
   switch (rotation) {
     case 0:
       rotation_ = ROTATE_0;
       break;
     case 90:
       rotation_ = ROTATE_90;
       break;
@@ skipping 84 matching lines @@
 bool Display::IsInternalDisplayId(int64_t display_id) {
   DCHECK_NE(kInvalidDisplayId, display_id);
   return HasInternalDisplay() && internal_display_id_ == display_id;
 }
 
 // static
 bool Display::HasInternalDisplay() {
   return internal_display_id_ != kInvalidDisplayId;
 }
 
+// static
+int Display::RotateToDegree(Rotation rotation) {
+  switch (rotation) {
+    case ROTATE_0:
+      return 0;
+    case ROTATE_90:
+      return 90;
+    case ROTATE_180:
+      return 180;
+    case ROTATE_270:
+      return 270;
+  }
+  NOTREACHED();
+  return 0;
+}
+
 }  // namespace display