Only you can prevent memory leaks.

tests/RecordTest.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "Test.h"
 
 #include "SkBitmap.h"
@@ skipping 84 matching lines @@
 
     SkPaint paint2;
     // CreateBitmapShader is too smart for us; an empty (or 1x1) bitmap shader
     // gets optimized into a non-bitmap form, so we create a 2x2 bitmap here.
     SkBitmap bitmap2;
     bitmap2.allocPixels(SkImageInfo::MakeN32Premul(2, 2));
     bitmap2.eraseColor(SK_ColorBLUE);
     *(bitmap2.getAddr32(0, 0)) = SK_ColorGREEN;
     SkShader* shader = SkShader::CreateBitmapShader(bitmap2, SkShader::kClamp_TileMode,
                                                     SkShader::kClamp_TileMode);
-    paint2.setShader(shader);
+    paint2.setShader(shader)->unref();
     REPORTER_ASSERT(r, shader->asABitmap(NULL, NULL, NULL) == SkShader::kDefault_BitmapType);
 
     APPEND(record, SkRecords::DrawRect, paint2, rect);
     REPORTER_ASSERT(r, SkRecordWillPlaybackBitmaps(record));
 }
 
 #undef APPEND