Move fpdfsdk/src up to fpdfsdk/.

fpdfsdk/src/formfiller/FFL_PushButton.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 "fpdfsdk/include/formfiller/FFL_PushButton.h"
-
-#include "fpdfsdk/include/formfiller/FFL_FormFiller.h"
-#include "fpdfsdk/include/pdfwindow/PWL_SpecialButton.h"
-
-CFFL_PushButton::CFFL_PushButton(CPDFDoc_Environment* pApp,
-                                 CPDFSDK_Annot* pAnnot)
-    : CFFL_Button(pApp, pAnnot) {}
-
-CFFL_PushButton::~CFFL_PushButton() {}
-
-CPWL_Wnd* CFFL_PushButton::NewPDFWindow(const PWL_CREATEPARAM& cp,
-                                        CPDFSDK_PageView* pPageView) {
-  CPWL_PushButton* pWnd = new CPWL_PushButton();
-  pWnd->Create(cp);
-
-  return pWnd;
-}
-
-FX_BOOL CFFL_PushButton::OnChar(CPDFSDK_Annot* pAnnot,
-                                FX_UINT nChar,
-                                FX_UINT nFlags) {
-  return CFFL_FormFiller::OnChar(pAnnot, nChar, nFlags);
-}
-
-void CFFL_PushButton::OnDraw(CPDFSDK_PageView* pPageView,
-                             CPDFSDK_Annot* pAnnot,
-                             CFX_RenderDevice* pDevice,
-                             CFX_Matrix* pUser2Device,
-                             FX_DWORD dwFlags) {
-  CFFL_Button::OnDraw(pPageView, pAnnot, pDevice, pUser2Device, dwFlags);
-}