Convert SkWriter32 to use an SkTDArray for its internal storage.

tests/ColorFilterTest.cpp

 /*
  * Copyright 2011 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 "TestClassDef.h"
 #include "SkColor.h"
 #include "SkColorPriv.h"
 #include "SkColorFilter.h"
 #include "SkLumaColorFilter.h"
 #include "SkRandom.h"
 #include "SkXfermode.h"
 #include "SkOrderedReadBuffer.h"
 #include "SkOrderedWriteBuffer.h"
 
 static SkColorFilter* reincarnate_colorfilter(SkFlattenable* obj) {
-    SkOrderedWriteBuffer wb(1024);
+    SkOrderedWriteBuffer wb;
     wb.writeFlattenable(obj);
 
     size_t size = wb.size();
     SkAutoSMalloc<1024> storage(size);
     // make a copy into storage
     wb.writeToMemory(storage.get());
 
     SkOrderedReadBuffer rb(storage.get(), size);
     return rb.readColorFilter();
 }
@@ skipping 88 matching lines @@
     for (unsigned i = 1; i < 256; ++i) {
         in = SkPackARGB32(i, i, i / 2, i / 3);
         lf->filterSpan(&in, 1, &out);
         REPORTER_ASSERT(reporter, out != in);
         REPORTER_ASSERT(reporter, SkGetPackedA32(out) <= i);
         REPORTER_ASSERT(reporter, SkGetPackedR32(out) == 0);
         REPORTER_ASSERT(reporter, SkGetPackedG32(out) == 0);
         REPORTER_ASSERT(reporter, SkGetPackedB32(out) == 0);
     }
 }