Remove trailing whitespaces in fpdfsdk, XFA edition.

Review URL: https://codereview.chromium.org/1185843005.
diff --git a/fpdfsdk/src/fpdf_progressive.cpp b/fpdfsdk/src/fpdf_progressive.cpp
index bd8d864..f94bce0 100644
--- a/fpdfsdk/src/fpdf_progressive.cpp
+++ b/fpdfsdk/src/fpdf_progressive.cpp
@@ -1,7 +1,7 @@
 // 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 "../../public/fpdf_progressive.h"
@@ -16,7 +16,7 @@
 
 extern void DropContext(void* data);
 
-DLLEXPORT int STDCALL FPDF_RenderPageBitmap_Start( FPDF_BITMAP bitmap, FPDF_PAGE page, 
+DLLEXPORT int STDCALL FPDF_RenderPageBitmap_Start( FPDF_BITMAP bitmap, FPDF_PAGE page,
 													int start_x, int start_y, int size_x,
 												    int size_y, int rotate, int flags,
 													IFSDK_PAUSE * pause )
@@ -33,9 +33,9 @@
 	CPDF_Page* pPage = ((CPDFXFA_Page*)page)->GetPDFPage();
 	if (!pPage)
 		return FPDF_RENDER_FAILED;
-	
+
 //	FXMT_CSLOCK_OBJ(&pPage->m_PageLock);
-	
+
 	CRenderContext* pContext = FX_NEW CRenderContext;
 	pPage->SetPrivateData((void*)1, pContext, DropContext );
 #ifdef _SKIA_SUPPORT_
@@ -52,7 +52,7 @@
 		((CFX_FxgeDevice*)pContext->m_pDevice)->Attach((CFX_DIBitmap*)bitmap);
 #endif
 	IFSDK_PAUSE_Adapter IPauseAdapter(pause);
-	
+
 	Func_RenderPage(pContext, page, start_x, start_y, size_x, size_y, rotate, flags,FALSE, &IPauseAdapter);
 
 	if ( pContext->m_pRenderer )
@@ -71,7 +71,7 @@
 
  	if (!pause)
 		return FPDF_RENDER_FAILED;
-	
+
 	if (pause->version !=1)
 		return FPDF_RENDER_FAILED;