Move xfa/src up to xfa/.

This CL moves the xfa/src files up to the xfa/ directory and fixes the includes,
include guards, and build files.

R=tsepez@chromium.org

Review URL: https://codereview.chromium.org/1803723002 .
diff --git a/xfa/fxfa/app/xfa_ffwidget.h b/xfa/fxfa/app/xfa_ffwidget.h
new file mode 100644
index 0000000..3782e3b
--- /dev/null
+++ b/xfa/fxfa/app/xfa_ffwidget.h
@@ -0,0 +1,187 @@
+// 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
+
+#ifndef XFA_FXFA_APP_XFA_FFWIDGET_H_
+#define XFA_FXFA_APP_XFA_FFWIDGET_H_
+
+#include <vector>
+
+#include "core/include/fxcodec/fx_codec_def.h"
+#include "core/include/fxge/fx_ge.h"
+#include "xfa/fxfa/parser/xfa_doclayout.h"
+#include "xfa/include/fxfa/fxfa.h"
+
+class CXFA_FFPageView;
+class CXFA_FFDocView;
+class CXFA_FFDoc;
+class CXFA_FFApp;
+
+inline FX_FLOAT XFA_UnitPx2Pt(FX_FLOAT fPx, FX_FLOAT fDpi) {
+  return fPx * 72.0f / fDpi;
+}
+#define XFA_FLOAT_PERCISION 0.001f
+enum XFA_WIDGETITEM {
+  XFA_WIDGETITEM_Parent,
+  XFA_WIDGETITEM_FirstChild,
+  XFA_WIDGETITEM_NextSibling,
+  XFA_WIDGETITEM_PrevSibling,
+};
+class CXFA_CalcData {
+ public:
+  CXFA_CalcData() : m_iRefCount(0) {}
+  ~CXFA_CalcData() { m_Globals.RemoveAll(); }
+  CFX_PtrArray m_Globals;
+  int32_t m_iRefCount;
+};
+class CXFA_FFWidget : public IXFA_Widget,
+                      public CFX_PrivateData,
+                      public CXFA_ContentLayoutItem {
+ public:
+  CXFA_FFWidget(CXFA_FFPageView* pPageView, CXFA_WidgetAcc* pDataAcc);
+  virtual ~CXFA_FFWidget();
+  IXFA_PageView* GetPageView();
+  void SetPageView(IXFA_PageView* pPageView);
+  void GetWidgetRect(CFX_RectF& rtWidget);
+  CFX_RectF ReCacheWidgetRect();
+  FX_DWORD GetStatus();
+  void ModifyStatus(FX_DWORD dwAdded, FX_DWORD dwRemoved);
+  virtual FX_BOOL GetBBox(CFX_RectF& rtBox,
+                          FX_DWORD dwStatus,
+                          FX_BOOL bDrawFocus = FALSE);
+  CXFA_WidgetAcc* GetDataAcc();
+  FX_BOOL GetToolTip(CFX_WideString& wsToolTip);
+  virtual void RenderWidget(CFX_Graphics* pGS,
+                            CFX_Matrix* pMatrix = NULL,
+                            FX_DWORD dwStatus = 0,
+                            int32_t iRotate = 0);
+
+  virtual FX_BOOL IsLoaded();
+  virtual FX_BOOL LoadWidget();
+  virtual void UnloadWidget();
+  virtual FX_BOOL PerformLayout();
+  virtual FX_BOOL UpdateFWLData();
+  virtual void UpdateWidgetProperty();
+  virtual FX_BOOL OnMouseEnter();
+  virtual FX_BOOL OnMouseExit();
+  virtual FX_BOOL OnLButtonDown(FX_DWORD dwFlags, FX_FLOAT fx, FX_FLOAT fy);
+  virtual FX_BOOL OnLButtonUp(FX_DWORD dwFlags, FX_FLOAT fx, FX_FLOAT fy);
+  virtual FX_BOOL OnLButtonDblClk(FX_DWORD dwFlags, FX_FLOAT fx, FX_FLOAT fy);
+  virtual FX_BOOL OnMouseMove(FX_DWORD dwFlags, FX_FLOAT fx, FX_FLOAT fy);
+  virtual FX_BOOL OnMouseWheel(FX_DWORD dwFlags,
+                               int16_t zDelta,
+                               FX_FLOAT fx,
+                               FX_FLOAT fy);
+  virtual FX_BOOL OnRButtonDown(FX_DWORD dwFlags, FX_FLOAT fx, FX_FLOAT fy);
+  virtual FX_BOOL OnRButtonUp(FX_DWORD dwFlags, FX_FLOAT fx, FX_FLOAT fy);
+  virtual FX_BOOL OnRButtonDblClk(FX_DWORD dwFlags, FX_FLOAT fx, FX_FLOAT fy);
+
+  virtual FX_BOOL OnSetFocus(CXFA_FFWidget* pOldWidget);
+  virtual FX_BOOL OnKillFocus(CXFA_FFWidget* pNewWidget);
+  virtual FX_BOOL OnKeyDown(FX_DWORD dwKeyCode, FX_DWORD dwFlags);
+  virtual FX_BOOL OnKeyUp(FX_DWORD dwKeyCode, FX_DWORD dwFlags);
+  virtual FX_BOOL OnChar(FX_DWORD dwChar, FX_DWORD dwFlags);
+  virtual FX_DWORD OnHitTest(FX_FLOAT fx, FX_FLOAT fy);
+  virtual FX_BOOL OnSetCursor(FX_FLOAT fx, FX_FLOAT fy);
+  virtual FX_BOOL CanUndo() { return FALSE; }
+  virtual FX_BOOL CanRedo() { return FALSE; }
+  virtual FX_BOOL Undo() { return FALSE; }
+  virtual FX_BOOL Redo() { return FALSE; }
+  virtual FX_BOOL CanCopy() { return FALSE; }
+  virtual FX_BOOL CanCut() { return FALSE; }
+  virtual FX_BOOL CanPaste() { return FALSE; }
+  virtual FX_BOOL CanSelectAll() { return FALSE; }
+  virtual FX_BOOL CanDelete() { return CanCut(); }
+  virtual FX_BOOL CanDeSelect() { return CanCopy(); }
+  virtual FX_BOOL Copy(CFX_WideString& wsCopy) { return FALSE; }
+  virtual FX_BOOL Cut(CFX_WideString& wsCut) { return FALSE; }
+  virtual FX_BOOL Paste(const CFX_WideString& wsPaste) { return FALSE; }
+  virtual FX_BOOL SelectAll() { return FALSE; }
+  virtual FX_BOOL Delete() { return FALSE; }
+  virtual FX_BOOL DeSelect() { return FALSE; }
+  virtual FX_BOOL GetSuggestWords(CFX_PointF pointf,
+                                  std::vector<CFX_ByteString>& sSuggest) {
+    return FALSE;
+  }
+  virtual FX_BOOL ReplaceSpellCheckWord(CFX_PointF pointf,
+                                        const CFX_ByteStringC& bsReplace) {
+    return FALSE;
+  }
+  CXFA_FFDocView* GetDocView();
+  void SetDocView(CXFA_FFDocView* pDocView) { m_pDocView = pDocView; }
+  CXFA_FFDoc* GetDoc();
+  CXFA_FFApp* GetApp();
+  IXFA_AppProvider* GetAppProvider();
+  void InvalidateWidget(const CFX_RectF* pRect = NULL);
+  void AddInvalidateRect(const CFX_RectF* pRect = NULL);
+  FX_BOOL GetCaptionText(CFX_WideString& wsCap);
+  FX_BOOL IsFocused();
+  void Rotate2Normal(FX_FLOAT& fx, FX_FLOAT& fy);
+  void GetRotateMatrix(CFX_Matrix& mt);
+  FX_BOOL IsLayoutRectEmpty();
+  CXFA_FFWidget* GetParent();
+  FX_BOOL IsAncestorOf(CXFA_FFWidget* pWidget);
+
+ protected:
+  virtual FX_BOOL PtInActiveRect(FX_FLOAT fx, FX_FLOAT fy);
+  void DrawBorder(CFX_Graphics* pGS,
+                  CXFA_Box box,
+                  const CFX_RectF& rtBorder,
+                  CFX_Matrix* pMatrix,
+                  FX_DWORD dwFlags = 0);
+  void GetMinMaxWidth(FX_FLOAT fMinWidth, FX_FLOAT fMaxWidth);
+  void GetMinMaxHeight(FX_FLOAT fMinHeight, FX_FLOAT fMaxHeight);
+  void GetRectWithoutRotate(CFX_RectF& rtWidget);
+  FX_BOOL IsMatchVisibleStatus(FX_DWORD dwStatus);
+
+  void EventKillFocus();
+  FX_BOOL IsButtonDown();
+  void SetButtonDown(FX_BOOL bSet);
+  CXFA_FFDocView* m_pDocView;
+  CXFA_FFPageView* m_pPageView;
+  CXFA_WidgetAcc* m_pDataAcc;
+  CFX_RectF m_rtWidget;
+};
+int32_t XFA_StrokeTypeSetLineDash(CFX_Graphics* pGraphics,
+                                  int32_t iStrokeType,
+                                  int32_t iCapType);
+CFX_GraphStateData::LineCap XFA_LineCapToFXGE(int32_t iLineCap);
+void XFA_DrawImage(CFX_Graphics* pGS,
+                   const CFX_RectF& rtImage,
+                   CFX_Matrix* pMatrix,
+                   CFX_DIBitmap* pDIBitmap,
+                   int32_t iAspect,
+                   int32_t iImageXDpi,
+                   int32_t iImageYDpi,
+                   int32_t iHorzAlign = XFA_ATTRIBUTEENUM_Left,
+                   int32_t iVertAlign = XFA_ATTRIBUTEENUM_Top);
+CFX_DIBitmap* XFA_LoadImageData(CXFA_FFDoc* pDoc,
+                                CXFA_Image* pImage,
+                                FX_BOOL& bNameImage,
+                                int32_t& iImageXDpi,
+                                int32_t& iImageYDpi);
+CFX_DIBitmap* XFA_LoadImageFromBuffer(IFX_FileRead* pImageFileRead,
+                                      FXCODEC_IMAGE_TYPE type,
+                                      int32_t& iImageXDpi,
+                                      int32_t& iImageYDpi);
+FXCODEC_IMAGE_TYPE XFA_GetImageType(const CFX_WideStringC& wsType);
+FX_CHAR* XFA_Base64Encode(const uint8_t* buf, int32_t buf_len);
+void XFA_RectWidthoutMargin(CFX_RectF& rt,
+                            const CXFA_Margin& mg,
+                            FX_BOOL bUI = FALSE);
+FX_FLOAT XFA_GetEdgeThickness(const CXFA_StrokeArray& strokes,
+                              FX_BOOL b3DStyle,
+                              int32_t nIndex);
+CXFA_FFWidget* XFA_GetWidgetFromLayoutItem(CXFA_LayoutItem* pLayoutItem);
+FX_BOOL XFA_IsCreateWidget(XFA_ELEMENT iType);
+#define XFA_DRAWBOX_ForceRound 1
+#define XFA_DRAWBOX_Lowered3D 2
+void XFA_DrawBox(CXFA_Box box,
+                 CFX_Graphics* pGS,
+                 const CFX_RectF& rtWidget,
+                 CFX_Matrix* pMatrix,
+                 FX_DWORD dwFlags = 0);
+
+#endif  // XFA_FXFA_APP_XFA_FFWIDGET_H_