Fix and enable lint checks.

core/src/fpdfapi/fpdf_render/fpdf_render_image.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 "core/src/fpdfapi/fpdf_render/render_int.h"
 
 #include <utility>
 #include <vector>
@@ skipping 229 matching lines @@
       break;
     case FXDIB_Rgb32:
       bSkip = TRUE;
     case FXDIB_Argb:
       for (i = 0; i < m_Width; i++) {
         *dest_buf++ = m_RampB[*(src_buf++)];
         *dest_buf++ = m_RampG[*(src_buf++)];
         *dest_buf++ = m_RampR[*(src_buf++)];
         if (!bSkip) {
           *dest_buf++ = *src_buf;
+#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
+        } else {
+          dest_buf++;
+#endif
         }
-#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
-        else {
-          dest_buf++;
-        }
-#endif
         src_buf++;
       }
       break;
     default:
       break;
   }
 }
 void CPDF_DIBTransferFunc::TranslateDownSamples(uint8_t* dest_buf,
                                                 const uint8_t* src_buf,
                                                 int pixels,
@@ skipping 11 matching lines @@
   } else {
 #if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
     if (!m_pSrc->HasAlpha()) {
       for (int i = 0; i < pixels; i++) {
         *dest_buf++ = m_RampB[*(src_buf++)];
         *dest_buf++ = m_RampG[*(src_buf++)];
         *dest_buf++ = m_RampR[*(src_buf++)];
         dest_buf++;
         src_buf++;
       }
-    } else
+    } else {
 #endif
       for (int i = 0; i < pixels; i++) {
         *dest_buf++ = m_RampB[*(src_buf++)];
         *dest_buf++ = m_RampG[*(src_buf++)];
         *dest_buf++ = m_RampR[*(src_buf++)];
         *dest_buf++ = *(src_buf++);
       }
+#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
+    }
+#endif
   }
 }
 CPDF_ImageRenderer::CPDF_ImageRenderer() {
   m_pRenderStatus = NULL;
   m_pImageObject = NULL;
   m_Result = TRUE;
   m_Status = 0;
   m_pTransformer = NULL;
   m_DeviceHandle = NULL;
   m_LoadHandle = NULL;
@@ skipping 680 matching lines @@
   } else if (pFunc) {
     int size = dest_pitch * height;
     for (int i = 0; i < size; i++) {
       dest_buf[i] = transfers[src_buf[i]];
     }
   } else {
     FXSYS_memcpy(dest_buf, src_buf, dest_pitch * height);
   }
   return pMask.release();
 }