[Ozone-DRI] Add support for asynchronous display configuration

ui/ozone/platform/dri/native_display_delegate_proxy.h

Index: ui/ozone/platform/dri/native_display_delegate_proxy.h
diff --git a/ui/ozone/platform/dri/native_display_delegate_proxy.h b/ui/ozone/platform/dri/native_display_delegate_proxy.h
index 63ce55b11371b0a3377df4199f994255320a4911..1e1098ec9cf7ef2b34a9736ccf3cdfec65c63064 100644
--- a/ui/ozone/platform/dri/native_display_delegate_proxy.h
+++ b/ui/ozone/platform/dri/native_display_delegate_proxy.h
@@ -5,6 +5,8 @@
 #ifndef UI_OZONE_PLATFORM_DRI_NATIVE_DISPLAY_DELEGATE_PROXY_H_
 #define UI_OZONE_PLATFORM_DRI_NATIVE_DISPLAY_DELEGATE_PROXY_H_
 
+#include <map>
+
 #include "base/macros.h"
 #include "base/memory/scoped_vector.h"
 #include "base/observer_list.h"
@@ -67,14 +69,24 @@ class NativeDisplayDelegateProxy : public NativeDisplayDelegate,
  private:
   void OnUpdateNativeDisplays(
       const std::vector<DisplaySnapshot_Params>& displays);
+  void OnDisplayConfigured(int64_t display_id, bool status);
 
   DriGpuPlatformSupportHost* proxy_;  // Not owned.
   DeviceManager* device_manager_;     // Not owned.
   DisplayManager* display_manager_;   // Not owned.
 
+  // Keeps track if there is a dummy display. This happens on initialization
+  // when there is no connection to the GPU to update the displays.
+  bool has_dummy_display_;
+
   ScopedVector<DisplaySnapshot> displays_;
   ObserverList<NativeDisplayObserver> observers_;
 
+  GetDisplaysCallback get_displays_callback_;
+
+  // Map between display_id and the configuration callback.
+  std::map<int64_t, ConfigureCallback> configure_callback_map_;
+
   DISALLOW_COPY_AND_ASSIGN(NativeDisplayDelegateProxy);
 };