Third wave of Win64 warning cleanup

src/utils/SkPDFRasterizer.cpp

 
 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifdef SK_BUILD_FOR_WIN32
 #pragma warning(push)
@@ skipping 20 matching lines @@
   }
 
   SkAutoTDelete<poppler::page> page(doc->create_page(0));
   poppler::page_renderer renderer;
   poppler::image image = renderer.render_page(page.get());
 
   if (!image.is_valid() || image.format() != poppler::image::format_argb32) {
     return false;
   }
 
-  size_t width = image.width(), height = image.height();
+  int width = image.width(), height = image.height();
   size_t rowSize = image.bytes_per_row();
   char *imgData = image.data();
 
   SkBitmap bitmap;
   bitmap.setConfig(SkBitmap::kARGB_8888_Config, width, height);
   if (!bitmap.allocPixels()) {
     return false;
   }
   bitmap.eraseColor(SK_ColorWHITE);
   SkPMColor* bitmapPixels = (SkPMColor*)bitmap.getPixels();
 
   // do pixel-by-pixel copy to deal with RGBA ordering conversions
-  for (size_t y = 0; y < height; y++) {
+  for (int y = 0; y < height; y++) {
     char *rowData = imgData;
-    for (size_t x = 0; x < width; x++) {
+    for (int x = 0; x < width; x++) {
       uint8_t a = rowData[3];
       uint8_t r = rowData[2];
       uint8_t g = rowData[1];
       uint8_t b = rowData[0];
 
       *bitmapPixels = SkPreMultiplyARGB(a, r, g, b);
 
       bitmapPixels++;
       rowData += 4;
     }
     imgData += rowSize;
   }
 
   output->swap(bitmap);
 
   return true;
 }