Remove fullscreen code.

xfa/fwl/core/fwl_appimp.cpp

 // Copyright 2014 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 #include "xfa/fwl/core/fwl_appimp.h"
 
 #include "xfa/fwl/core/fwl_noteimp.h"
 #include "xfa/fwl/core/fwl_targetimp.h"
@@ skipping 71 matching lines @@
 }
 IFWL_ThemeProvider* CFWL_AppImp::GetThemeProvider() const {
   return m_pThemeProvider;
 }
 IFWL_AdapterNative* FWL_GetAdapterNative() {
   IFWL_App* pApp = FWL_GetApp();
   if (!pApp)
     return NULL;
   return pApp->GetAdapterNative();
 }
-IFWL_ThemeProvider* FWL_GetThemeProvider() {
-  return NULL;
-}
 static IFWL_App* _theApp = NULL;
 IFWL_App* FWL_GetApp() {
   return _theApp;
 }
 void FWL_SetApp(IFWL_App* pApp) {
   _theApp = pApp;
 }
-FWL_ERR FWL_SetFullScreen(IFWL_Widget* pWidget, FX_BOOL bFullScreen) {
-  if (!pWidget)
-    return FWL_ERR_Succeeded;
-  IFWL_Thread* pNoteTread = pWidget->GetOwnerThread();
-  if (!pNoteTread)
-    return FWL_ERR_Succeeded;
-  CFWL_NoteDriver* pNoteDriver =
-      static_cast<CFWL_NoteDriver*>(pNoteTread->GetNoteDriver());
-  if (!pNoteTread)
-    return FWL_ERR_Succeeded;
-  pNoteDriver->NotifyFullScreenMode(pWidget, bFullScreen);
-  return FWL_GetAdapterWidgetMgr()->SetFullScreen(pWidget, bFullScreen);
-}