make allocPixels throw on failure

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 32 matching lines @@
 
   if (!image.is_valid() || image.format() != poppler::image::format_argb32) {
     return false;
   }
 
   int width = image.width(), height = image.height();
   size_t rowSize = image.bytes_per_row();
   char *imgData = image.data();
 
   SkBitmap bitmap;
-  if (!bitmap.allocPixels(SkImageInfo::MakeN32Premul(width, height))) {
+  if (!bitmap.tryAllocN32Pixels(width, height)) {
     return false;
   }
   bitmap.eraseColor(SK_ColorWHITE);
   SkPMColor* bitmapPixels = (SkPMColor*)bitmap.getPixels();
 
   // do pixel-by-pixel copy to deal with RGBA ordering conversions
   for (int y = 0; y < height; y++) {
     char *rowData = imgData;
     for (int x = 0; x < width; x++) {
       uint8_t a = rowData[3];
@@ skipping 13 matching lines @@
 
   return true;
 }
 #endif  // SK_BUILD_POPPLER
 
 #ifdef SK_BUILD_NATIVE_PDF_RENDERER
 bool SkNativeRasterizePDF(SkStream* pdf, SkBitmap* output) {
     return SkPDFNativeRenderToBitmap(pdf, output);
 }
 #endif  // SK_BUILD_NATIVE_PDF_RENDERER