Split //ui/display and create //ui/display/manager.

ui/display/manager/display_layout.h

Index: ui/display/manager/display_layout.h
diff --git a/ui/display/manager/display_layout.h b/ui/display/manager/display_layout.h
index 5e7db099d18cfff98362066599b321e6a00ab422..e16206edc9f1d7365e2ec03eb1f75be4e4f38448 100644
--- a/ui/display/manager/display_layout.h
+++ b/ui/display/manager/display_layout.h
@@ -13,7 +13,7 @@
 
 #include "base/macros.h"
 #include "base/strings/string_piece.h"
-#include "ui/display/display_export.h"
+#include "ui/display/manager/display_manager_export.h"
 
 namespace display {
 class Display;
@@ -37,7 +37,7 @@ using Displays = std::vector<Display>;
 //                        |        |
 //                        +--------+
 //
-struct DISPLAY_EXPORT DisplayPlacement {
+struct DISPLAY_MANAGER_EXPORT DisplayPlacement {
   // The id of the display this placement will be applied to.
   int64_t display_id;
 
@@ -78,7 +78,7 @@ struct DISPLAY_EXPORT DisplayPlacement {
                                Position* position);
 };
 
-class DISPLAY_EXPORT DisplayLayout final {
+class DISPLAY_MANAGER_EXPORT DisplayLayout final {
  public:
   DisplayLayout();
   ~DisplayLayout();