[Ozone-GBM] Adding NativeWindowDelegate to IPC window changes to the GPU

ui/ozone/common/gpu/ozone_gpu_messages.h

Index: ui/ozone/common/gpu/ozone_gpu_messages.h
diff --git a/ui/ozone/common/gpu/ozone_gpu_messages.h b/ui/ozone/common/gpu/ozone_gpu_messages.h
index 0d811d9203aa8e3685a8923290d4fae0995f8209..6e42cf7336892a485fdc64926b748c0bc44c717d 100644
--- a/ui/ozone/common/gpu/ozone_gpu_messages.h
+++ b/ui/ozone/common/gpu/ozone_gpu_messages.h
@@ -10,6 +10,7 @@
 #include "ipc/ipc_message_macros.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "ui/gfx/geometry/point.h"
+#include "ui/gfx/geometry/rect.h"
 #include "ui/gfx/ipc/gfx_param_traits.h"
 #include "ui/gfx/native_widget_types.h"
 #include "ui/ozone/common/gpu/ozone_gpu_message_params.h"
@@ -58,6 +59,20 @@ IPC_MESSAGE_CONTROL3(OzoneGpuMsg_CursorSet,
 IPC_MESSAGE_CONTROL2(OzoneGpuMsg_CursorMove,
                      gfx::AcceleratedWidget, gfx::Point)
 
+// Explicit creation of a WindowDelegate. We explicitly create the window
+// delegate such that any state change in the window is not lost while the
+// surface is created on the GPU side.
+IPC_MESSAGE_CONTROL1(OzoneGpuMsg_CreateWindowDelegate,
+                     gfx::AcceleratedWidget /* widget */)
+
+IPC_MESSAGE_CONTROL1(OzoneGpuMsg_DestroyWindowDelegate,
+                     gfx::AcceleratedWidget /* widget */)
+
+// Updates the location and size of the widget on the screen.
+IPC_MESSAGE_CONTROL2(OzoneGpuMsg_WindowBoundsChanged,
+                     gfx::AcceleratedWidget /* widget */,
+                     gfx::Rect /* bounds */)
+
 #if defined(OS_CHROMEOS)
 // Force the DPMS state of the display to on.
 IPC_MESSAGE_CONTROL0(OzoneGpuMsg_ForceDPMSOn)