Revert of Remove unused (by clients) SkUnitMapper (https://codereview.chromium.org/283273002/)

src/core/SkReadBuffer.cpp

 
 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkBitmap.h"
 #include "SkErrorInternals.h"
@@ skipping 317 matching lines @@
         if (sizeRecorded != sizeRead) {
             // we could try to fix up the offset...
             sk_throw();
         }
     } else {
         // we must skip the remaining data
         fReader.skip(sizeRecorded);
     }
     return obj;
 }
-
-/**
- *  Needs to follow the same pattern as readFlattenable(), but explicitly skip whatever data
- *  has been written.
- */
-void SkReadBuffer::skipFlattenable() {
-    if (fFactoryCount > 0) {
-        if (0 == fReader.readU32()) {
-            return;
-        }
-    } else if (fFactoryTDArray) {
-        if (0 == fReader.readU32()) {
-            return;
-        }
-    } else {
-        if (NULL == this->readFunctionPtr()) {
-            return;
-        }
-    }
-    uint32_t sizeRecorded = fReader.readU32();
-    fReader.skip(sizeRecorded);
-}