Remove mojo::Map.

services/ui/ws/window_manager_state.cc

Index: services/ui/ws/window_manager_state.cc
diff --git a/services/ui/ws/window_manager_state.cc b/services/ui/ws/window_manager_state.cc
index fe6065db95b4675a126c1e64f05e03667c8628b7..c6851d67b674bac9b2dd436ec390c908a68a59bd 100644
--- a/services/ui/ws/window_manager_state.cc
+++ b/services/ui/ws/window_manager_state.cc
@@ -165,7 +165,7 @@ void WindowManagerState::SetDragDropSourceWindow(
     DragSource* drag_source,
     ServerWindow* window,
     DragTargetConnection* source_connection,
-    mojo::Map<mojo::String, mojo::Array<uint8_t>> drag_data,
+    const std::unordered_map<std::string, std::vector<uint8_t>>& drag_data,
     uint32_t drag_operation) {
   int32_t drag_pointer = PointerEvent::kMousePointerId;
   if (event_awaiting_input_ack_ &&
@@ -178,9 +178,9 @@ void WindowManagerState::SetDragDropSourceWindow(
     return;
   }
 
-  event_dispatcher_.SetDragDropSourceWindow(
-      drag_source, window, source_connection, drag_pointer,
-      std::move(drag_data), drag_operation);
+  event_dispatcher_.SetDragDropSourceWindow(drag_source, window,
+                                            source_connection, drag_pointer,
+                                            drag_data, drag_operation);
 }
 
 void WindowManagerState::CancelDragDrop() {