Bug 1824514 - Make xpfe/appshell buildable outside of a unified build environment r=andi

Differential Revision: https://phabricator.services.mozilla.com/D173614

xpfe/appshell/moz.build

@@ -46,5 +46,3 @@ LOCAL_INCLUDES += [
 FINAL_LIBRARY = "xul"
 
 include("/ipc/chromium/chromium-config.mozbuild")
-
-REQUIRES_UNIFIED_BUILD = True

xpfe/appshell/nsAppShellService.cpp

@@ -530,7 +530,6 @@ static bool CheckForFullscreenWindow() {
       }
     }
   }
-  return false;
 }
 #endif
 

xpfe/appshell/nsContentTreeOwner.cpp

@@ -24,6 +24,7 @@
 #include "nsIMIMEInfo.h"
 #include "nsIWidget.h"
 #include "nsWindowWatcher.h"
+#include "nsIWindowMediator.h"
 #include "mozilla/Components.h"
 #include "mozilla/NullPrincipal.h"
 #include "nsDocShell.h"

xpfe/appshell/nsWindowMediator.cpp

@@ -17,6 +17,7 @@
 #include "nsWindowMediator.h"
 #include "nsIWindowMediatorListener.h"
 #include "nsGlobalWindow.h"
+#include "nsServiceManagerUtils.h"
 
 #include "nsIDocShell.h"
 #include "nsIInterfaceRequestor.h"

xpfe/appshell/nsWindowMediator.h

@@ -10,6 +10,7 @@
 #include "nsIWindowMediator.h"
 #include "nsIObserver.h"
 #include "nsTArray.h"
+#include "nsPIDOMWindow.h"
 #include "nsString.h"
 #include "nsWeakReference.h"
 #include "nsTObserverArray.h"