Pass rect by const reference in SetClip_Rect().

fpdfsdk/src/fpdfformfill.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 "public/fpdf_formfill.h"
 
 #include <memory>
 #include <vector>
@@ skipping 314 matching lines @@
     return;
   CPDFDoc_Environment* pEnv = (CPDFDoc_Environment*)hHandle;
   CPDFSDK_Document* pFXDoc = pEnv->GetSDKDocument();
   if (!pFXDoc)
     return;
 #endif  // PDF_ENABLE_XFA
 
   CFX_Matrix matrix;
   pPage->GetDisplayMatrix(matrix, start_x, start_y, size_x, size_y, rotate);
 
-  FX_RECT clip;
-  clip.left = start_x;
-  clip.right = start_x + size_x;
-  clip.top = start_y;
-  clip.bottom = start_y + size_y;
+  FX_RECT clip(start_x, start_y, start_x + size_x, start_y + size_y);
 
 #ifdef _SKIA_SUPPORT_
   std::unique_ptr<CFX_SkiaDevice> pDevice(new CFX_SkiaDevice);
 #else
   std::unique_ptr<CFX_FxgeDevice> pDevice(new CFX_FxgeDevice);
 #endif
   pDevice->Attach((CFX_DIBitmap*)bitmap);
   pDevice->SaveState();
-  pDevice->SetClip_Rect(&clip);
+  pDevice->SetClip_Rect(clip);
 
 #ifndef PDF_ENABLE_XFA
   if (CPDFSDK_PageView* pPageView = FormHandleToPageView(hHandle, pPage))
     pPageView->PageView_OnDraw(pDevice.get(), &matrix, &options);
 #else   // PDF_ENABLE_XFA
   CPDF_RenderOptions options;
   if (flags & FPDF_LCD_TEXT)
     options.m_Flags |= RENDER_CLEARTYPE;
   else
     options.m_Flags &= ~RENDER_CLEARTYPE;
@@ skipping 367 matching lines @@
         pActionHandler->DoAction_Page(action, CPDF_AAction::OpenPage, pSDKDoc);
       }
     } else {
       if (aa.ActionExist(CPDF_AAction::ClosePage)) {
         CPDF_Action action = aa.GetAction(CPDF_AAction::ClosePage);
         pActionHandler->DoAction_Page(action, CPDF_AAction::ClosePage, pSDKDoc);
       }
     }
   }
 }