fix test for empty config

src/core/SkBitmap.cpp

 
 /*
  * Copyright 2008 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #include "SkBitmap.h"
@@ skipping 245 matching lines @@
 bool SkBitmap::setConfig(const SkImageInfo& info, size_t rowBytes) {
     // require that rowBytes fit in 31bits
     int64_t mrb = info.minRowBytes64();
     if ((int32_t)mrb != mrb) {
         return reset_return_false(this);
     }
     if ((int64_t)rowBytes != (int32_t)rowBytes) {
         return reset_return_false(this);
     }
 
-    if (info.isEmpty()) {
+    if (info.width() < 0 || info.height() < 0) {
         return reset_return_false(this);
     }
 
     if (kUnknown_SkColorType == info.colorType()) {
         rowBytes = 0;
     } else if (0 == rowBytes) {
         rowBytes = (size_t)mrb;
     } else if (rowBytes < info.minRowBytes()) {
         return reset_return_false(this);
     }
@@ skipping 1407 matching lines @@
 ///////////////////////////////////////////////////////////////////////////////
 
 #ifdef SK_DEBUG
 void SkImageInfo::validate() const {
     SkASSERT(fWidth >= 0);
     SkASSERT(fHeight >= 0);
     SkASSERT(SkColorTypeIsValid(fColorType));
     SkASSERT(SkAlphaTypeIsValid(fAlphaType));
 }
 #endif