Bug 1660470 - Avoid including WidgetMessageUtils.h from header files. r=nika

Differential Revision: https://phabricator.services.mozilla.com/D93238

Depends on D93237

widget/windows/PCompositorWidget.ipdl

@@ -6,9 +6,11 @@
 
 include protocol PCompositorBridge;
 
+include "mozilla/widget/WidgetMessageUtils.h";
+
 using mozilla::gfx::IntSize from "mozilla/gfx/Point.h";
 using mozilla::WindowsHandle from "mozilla/ipc/IPCTypes.h";
-using nsTransparencyMode from "mozilla/widget/WidgetMessageUtils.h";
+using nsTransparencyMode from "nsIWidget.h";
 
 namespace mozilla {
 namespace widget {

widget/windows/PlatformWidgetTypes.ipdlh

@@ -5,12 +5,13 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 include "mozilla/dom/TabMessageUtils.h";
+include "mozilla/widget/WidgetMessageUtils.h";
 
 include HeadlessWidgetTypes;
 
 using mozilla::WindowsHandle from "mozilla/ipc/IPCTypes.h";
 using nsSizeMode from "nsIWidgetListener.h";
-using nsTransparencyMode from "mozilla/widget/WidgetMessageUtils.h";
+using nsTransparencyMode from "nsIWidget.h";
 
 namespace mozilla {
 namespace widget {