Revert of tryAllocPixels returns bool, allocPixels requires success

skia/config/SkUserConfig.h

 /*
  * Copyright (C) 2006 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
@@ skipping 239 matching lines @@
 // Remove these as we update our sites.
 //
 #ifndef SK_SUPPORT_LEGACY_GETTOPDEVICE
     #define SK_SUPPORT_LEGACY_GETTOPDEVICE
 #endif
 
 #ifndef SK_SUPPORT_LEGACY_GETDEVICE
     #define SK_SUPPORT_LEGACY_GETDEVICE
 #endif
 
-#ifdef SK_SUPPORT_LEGACY_ALLOCPIXELS_BOOL
-    #undef SK_SUPPORT_LEGACY_ALLOCPIXELS_BOOL
+#ifndef SK_SUPPORT_LEGACY_ALLOCPIXELS_BOOL
+    #define SK_SUPPORT_LEGACY_ALLOCPIXELS_BOOL
 #endif
 
 // Turns SkPicture::clone() into a simple "return SkRef(this);" as a way to
 // test the threadsafety of SkPicture playback.
 #define SK_PICTURE_CLONE_NOOP 1
 
 // Turns on new (nicer, hopefully faster) SkPicture backend.
 #define SK_PICTURE_USE_SK_RECORD 1
 
 // ===== End Chrome-specific definitions =====
 
 #endif