Move ash::DisplayInfo to ui

ash/display/root_window_transformers.h

Index: ash/display/root_window_transformers.h
diff --git a/ash/display/root_window_transformers.h b/ash/display/root_window_transformers.h
index b5b5c1b56246f5116d85a4b2d1a9d14057896f8d..145bf277091a5ceb270a5ff103bf3b74501f98f4 100644
--- a/ash/display/root_window_transformers.h
+++ b/ash/display/root_window_transformers.h
@@ -20,8 +20,11 @@ class Rect;
 class Transform;
 }
 
-namespace ash {
+namespace ui {
 class DisplayInfo;
+}
+
+namespace ash {
 class RootWindowTransformer;
 
 ASH_EXPORT RootWindowTransformer* CreateRootWindowTransformerForDisplay(
@@ -33,8 +36,8 @@ ASH_EXPORT RootWindowTransformer* CreateRootWindowTransformerForDisplay(
 // and |mirror_display_info| specifies the display used to
 // mirror the content.
 ASH_EXPORT RootWindowTransformer* CreateRootWindowTransformerForMirroredDisplay(
-    const DisplayInfo& source_display_info,
-    const DisplayInfo& mirror_display_info);
+    const ui::DisplayInfo& source_display_info,
+    const ui::DisplayInfo& mirror_display_info);
 
 // Creates a RootWindowTransformers for unified desktop mode.
 // |screen_bounds| specifies the unified desktop's bounds and