Fix and enable lint checks.

core/src/fpdfapi/fpdf_render/fpdf_render_text.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 "core/include/fpdfapi/fpdf_pageobj.h"
 #include "core/include/fpdfapi/fpdf_render.h"
@@ skipping 56 matching lines @@
   blues[count++] = new_pos;
   return new_pos;
 }
 void CPDF_Type3Glyphs::AdjustBlue(FX_FLOAT top,
                                   FX_FLOAT bottom,
                                   int& top_line,
                                   int& bottom_line) {
   top_line = _AdjustBlue(top, m_TopBlueCount, m_TopBlue);
   bottom_line = _AdjustBlue(bottom, m_BottomBlueCount, m_BottomBlue);
 }
+
 static FX_BOOL _IsScanLine1bpp(uint8_t* pBuf, int width) {
   int size = width / 8;
-  for (int i = 0; i < size; i++)
-    if (pBuf[i]) {
+  for (int i = 0; i < size; i++) {
+    if (pBuf[i])
       return TRUE;
-    }
-  if (width % 8)
-    if (pBuf[width / 8] & (0xff << (8 - width % 8))) {
+  }
+  return (width % 8) && (pBuf[width / 8] & (0xff << (8 - width % 8)));
+}
+
+static FX_BOOL _IsScanLine8bpp(uint8_t* pBuf, int width) {
+  for (int i = 0; i < width; i++) {
+    if (pBuf[i] > 0x40)
       return TRUE;
-    }
+  }
   return FALSE;
 }
-static FX_BOOL _IsScanLine8bpp(uint8_t* pBuf, int width) {
-  for (int i = 0; i < width; i++)
-    if (pBuf[i] > 0x40) {
-      return TRUE;
-    }
-  return FALSE;
-}
+
 static int _DetectFirstLastScan(const CFX_DIBitmap* pBitmap, FX_BOOL bFirst) {
   int height = pBitmap->GetHeight(), pitch = pBitmap->GetPitch(),
       width = pBitmap->GetWidth();
   int bpp = pBitmap->GetBPP();
   if (bpp > 8) {
     width *= bpp / 8;
   }
   uint8_t* pBuf = pBitmap->GetBuffer();
   int line = bFirst ? 0 : height - 1;
   int line_step = bFirst ? 1 : -1;
@@ skipping 671 matching lines @@
                   charpos.m_OriginY);
     path.m_Path.New()->Append(pPath, &matrix);
     path.m_Matrix = *pTextMatrix;
     path.m_bStroke = bStroke;
     path.m_FillType = bFill ? FXFILL_WINDING : 0;
     path.CalcBoundingBox();
     ProcessPath(&path, pObj2Device);
   }
 }