Convert ScopedVector<DisplayPlacement> to std::vector<DisplayPlacement>

ash/display/extended_mouse_warp_controller.cc

Index: ash/display/extended_mouse_warp_controller.cc
diff --git a/ash/display/extended_mouse_warp_controller.cc b/ash/display/extended_mouse_warp_controller.cc
index 9fe1254179728ecbf0c0cdd335bceaa44905fcf0..879b04baa1234c778f7c3dfcd252ea5c9b6052a3 100644
--- a/ash/display/extended_mouse_warp_controller.cc
+++ b/ash/display/extended_mouse_warp_controller.cc
@@ -80,13 +80,13 @@ ExtendedMouseWarpController::ExtendedMouseWarpController(
       Shell::GetInstance()->display_manager();
 
   // TODO(oshima): Use ComputeBondary instead and try all combinations.
-  for (const auto* placement :
+  for (const auto& placement :
        display_manager->GetCurrentDisplayLayout().placement_list) {
-    DisplayPlacement::Position position = placement->position;
+    DisplayPlacement::Position position = placement.position;
     const gfx::Display& a =
-        display_manager->GetDisplayForId(placement->parent_display_id);
+        display_manager->GetDisplayForId(placement.parent_display_id);
     const gfx::Display& b =
-        display_manager->GetDisplayForId(placement->display_id);
+        display_manager->GetDisplayForId(placement.display_id);
 
     if (position == DisplayPlacement::TOP ||
         position == DisplayPlacement::BOTTOM) {