stop calling deprecated asImageInfo

Source/platform/graphics/test/MockDiscardablePixelRef.h

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 33 matching lines @@
 
     void discard()
     {
         ASSERT(!m_lockedMemory);
         discarded = true;
     }
 
     class Allocator : public SkBitmap::Allocator {
     public:
         virtual bool allocPixelRef(SkBitmap* dst, SkColorTable* ct) SK_OVERRIDE {
-            SkImageInfo info;
-            if (!dst->asImageInfo(&info)) {
+            const SkImageInfo info = dst->info();

[f(malita), 2014/05/29 12:51:38]

const SkImageInfo&

+            if (kUnknown_SkColorType == info.colorType())
                 return false;
-            }
             SkAutoTUnref<SkPixelRef> pr(new MockDiscardablePixelRef(info, dst->rowBytes()));
             dst->setPixelRef(pr);
             return true;
         }
     };
 
     SK_DECLARE_UNFLATTENABLE_OBJECT()
 
 protected:
     virtual bool onNewLockPixels(LockRec* rec)
@@ skipping 14 matching lines @@
 
 private:
     void* m_lockedMemory;
     size_t m_rowBytes;
     bool discarded;
 };
 
 } // namespace WebCore
 
 #endif // MockDiscardablePixelRef_h