clang-format all pdfium code.

fpdfsdk/include/formfiller/FFL_PushButton.h

 // 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 FPDFSDK_INCLUDE_FORMFILLER_FFL_PUSHBUTTON_H_
 #define FPDFSDK_INCLUDE_FORMFILLER_FFL_PUSHBUTTON_H_
 
 #include "FFL_FormFiller.h"
 
-class CFFL_PushButton : public CFFL_Button
-{
-public:
-        CFFL_PushButton(CPDFDoc_Environment* pApp, CPDFSDK_Annot* pAnnot);
-        virtual ~CFFL_PushButton();
+class CFFL_PushButton : public CFFL_Button {
+ public:
+  CFFL_PushButton(CPDFDoc_Environment* pApp, CPDFSDK_Annot* pAnnot);
+  virtual ~CFFL_PushButton();
 
-        virtual CPWL_Wnd*                       NewPDFWindow(const PWL_CREATEPARAM& cp, CPDFSDK_PageView* pPageView);
+  virtual CPWL_Wnd* NewPDFWindow(const PWL_CREATEPARAM& cp,
+                                 CPDFSDK_PageView* pPageView);
 
-        virtual FX_BOOL                         OnChar(CPDFSDK_Annot* pAnnot, FX_UINT nChar, FX_UINT nFlags);
-        virtual void                            OnDraw(CPDFSDK_PageView *pPageView,  CPDFSDK_Annot* pAnnot,
-                                                                        CFX_RenderDevice* pDevice, CPDF_Matrix* pUser2Device,
-                                                                        FX_DWORD dwFlags);
+  virtual FX_BOOL OnChar(CPDFSDK_Annot* pAnnot, FX_UINT nChar, FX_UINT nFlags);
+  virtual void OnDraw(CPDFSDK_PageView* pPageView,
+                      CPDFSDK_Annot* pAnnot,
+                      CFX_RenderDevice* pDevice,
+                      CPDF_Matrix* pUser2Device,
+                      FX_DWORD dwFlags);
 };
 
 #endif  // FPDFSDK_INCLUDE_FORMFILLER_FFL_PUSHBUTTON_H_