fix a leak

tests/SerializationTest.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.
  */
 
 #include "SkBitmapDevice.h"
 #include "SkBitmapSource.h"
 #include "SkCanvas.h"
 #include "SkMallocPixelRef.h"
+#include "SkTemplates.h"
 #include "SkWriteBuffer.h"
 #include "SkValidatingReadBuffer.h"
 #include "SkXfermodeImageFilter.h"
 #include "Test.h"
 
 static const uint32_t kArraySize = 64;
 static const int kBitmapSize = 256;
 
 template<typename T>
 static void TestAlignment(T* testObj, skiatest::Reporter* reporter) {
@@ skipping 349 matching lines @@
         SkPicture* pict = new SkPicture;
         SkAutoUnref aur(pict);
         bool didDraw = drawSomething(pict->beginRecording(kBitmapSize, kBitmapSize));
         REPORTER_ASSERT(reporter, didDraw);
         pict->endRecording();
 
         // Serialize picture
         SkWriteBuffer writer(SkWriteBuffer::kValidation_Flag);
         pict->flatten(writer);
         size_t size = writer.bytesWritten();
-        void* data = sk_malloc_throw(size);
-        writer.writeToMemory(data);
+        SkAutoTMalloc<unsigned char> data(size);
+        writer.writeToMemory(static_cast<void*>(data.get()));
 
         // Deserialize picture
-        SkValidatingReadBuffer reader(data, size);
+        SkValidatingReadBuffer reader(static_cast<void*>(data.get()), size);
         SkAutoTUnref<SkPicture> readPict(
             SkPicture::CreateFromBuffer(reader));
         REPORTER_ASSERT(reporter, NULL != readPict.get());
     }
 }