Move ifx_renderdevicedriver to a separate file to share

core/fxge/include/ifx_renderdevicedriver.h

Index: core/fxge/include/ifx_renderdevicedriver.h
diff --git a/core/fxge/include/ifx_renderdevicedriver.h b/core/fxge/include/ifx_renderdevicedriver.h
new file mode 100644
index 0000000000000000000000000000000000000000..572469b8c02858f498c873bb0c4b2a413c5cf873
--- /dev/null
+++ b/core/fxge/include/ifx_renderdevicedriver.h
@@ -0,0 +1,104 @@
+// Copyright 2016 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 CORE_FXGE_INCLUDE_IFX_RENDERDEVICEDRIVER_H_
+#define CORE_FXGE_INCLUDE_IFX_RENDERDEVICEDRIVER_H_
+
+#include "core/fxcrt/include/fx_system.h"
+
+class CFX_DIBitmap;
+class CFX_DIBSource;
+class CFX_Font;
+class CFX_FontCache;
+class CFX_GraphStateData;
+class CFX_Matrix;
+class CFX_PathData;
+class CPDF_ShadingPattern;
+class IFX_Pause;
+struct FXTEXT_CHARPOS;
+struct FX_RECT;
+
+class IFX_RenderDeviceDriver {
+ public:
+  virtual ~IFX_RenderDeviceDriver();
+
+  virtual int GetDeviceCaps(int caps_id) const = 0;
+  virtual CFX_Matrix GetCTM() const;
+
+  virtual FX_BOOL StartRendering();
+  virtual void EndRendering();
+  virtual void SaveState() = 0;
+  virtual void RestoreState(bool bKeepSaved) = 0;
+
+  virtual FX_BOOL SetClip_PathFill(const CFX_PathData* pPathData,
+                                   const CFX_Matrix* pObject2Device,
+                                   int fill_mode) = 0;
+  virtual FX_BOOL SetClip_PathStroke(const CFX_PathData* pPathData,
+                                     const CFX_Matrix* pObject2Device,
+                                     const CFX_GraphStateData* pGraphState);
+  virtual FX_BOOL DrawPath(const CFX_PathData* pPathData,
+                           const CFX_Matrix* pObject2Device,
+                           const CFX_GraphStateData* pGraphState,
+                           uint32_t fill_color,
+                           uint32_t stroke_color,
+                           int fill_mode,
+                           int blend_type) = 0;
+  virtual FX_BOOL SetPixel(int x, int y, uint32_t color);
+  virtual FX_BOOL FillRectWithBlend(const FX_RECT* pRect,
+                                    uint32_t fill_color,
+                                    int blend_type);
+  virtual FX_BOOL DrawCosmeticLine(FX_FLOAT x1,
+                                   FX_FLOAT y1,
+                                   FX_FLOAT x2,
+                                   FX_FLOAT y2,
+                                   uint32_t color,
+                                   int blend_type);
+
+  virtual FX_BOOL GetClipBox(FX_RECT* pRect) = 0;
+  virtual FX_BOOL GetDIBits(CFX_DIBitmap* pBitmap, int left, int top);
+  virtual CFX_DIBitmap* GetBackDrop();
+  virtual FX_BOOL SetDIBits(const CFX_DIBSource* pBitmap,
+                            uint32_t color,
+                            const FX_RECT* pSrcRect,
+                            int dest_left,
+                            int dest_top,
+                            int blend_type) = 0;
+  virtual FX_BOOL StretchDIBits(const CFX_DIBSource* pBitmap,
+                                uint32_t color,
+                                int dest_left,
+                                int dest_top,
+                                int dest_width,
+                                int dest_height,
+                                const FX_RECT* pClipRect,
+                                uint32_t flags,
+                                int blend_type) = 0;
+  virtual FX_BOOL StartDIBits(const CFX_DIBSource* pBitmap,
+                              int bitmap_alpha,
+                              uint32_t color,
+                              const CFX_Matrix* pMatrix,
+                              uint32_t flags,
+                              void*& handle,
+                              int blend_type) = 0;
+  virtual FX_BOOL ContinueDIBits(void* handle, IFX_Pause* pPause);
+  virtual void CancelDIBits(void* handle);
+  virtual FX_BOOL DrawDeviceText(int nChars,
+                                 const FXTEXT_CHARPOS* pCharPos,
+                                 CFX_Font* pFont,
+                                 CFX_FontCache* pCache,
+                                 const CFX_Matrix* pObject2Device,
+                                 FX_FLOAT font_size,
+                                 uint32_t color);
+  virtual void* GetPlatformSurface() const;
+  virtual int GetDriverType() const;
+  virtual void ClearDriver();
+  virtual FX_BOOL DrawShading(const CPDF_ShadingPattern* pPattern,
+                              const CFX_Matrix* pMatrix,
+                              const FX_RECT& clip_rect,
+                              int alpha,
+                              FX_BOOL bAlphaMode);
+};
+
+#endif  // CORE_FXGE_INCLUDE_IFX_RENDERDEVICEDRIVER_H_