remove confusing/unused stream methods

include/core/SkStream.h

 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkStream_DEFINED
 #define SkStream_DEFINED
 
@@ skipping 63 matching lines @@
     int32_t  readS32();
 
     uint8_t  readU8() { return (uint8_t)this->readS8(); }
     uint16_t readU16() { return (uint16_t)this->readS16(); }
     uint32_t readU32() { return (uint32_t)this->readS32(); }
 
     bool     readBool() { return this->readU8() != 0; }
     SkScalar readScalar();
     size_t   readPackedUInt();
 
-    /**
-     *  Reconstitute an SkData object that was written to the stream
-     *  using SkWStream::writeData().
-     */
-    SkData* readData();
-
 //SkStreamRewindable
     /** Rewinds to the beginning of the stream. Returns true if the stream is known
      *  to be at the beginning after this call returns.
      */
     virtual bool rewind() { return false; }
 
     /** Duplicates this stream. If this cannot be done, returns NULL.
      *  The returned stream will be positioned at the beginning of its data.
      */
     virtual SkStreamRewindable* duplicate() const { return NULL; }
@@ skipping 103 matching lines @@
     bool    writeHexAsText(uint32_t, int minDigits = 0);
     bool    writeScalarAsText(SkScalar);
 
     bool    writeBool(bool v) { return this->write8(v); }
     bool    writeScalar(SkScalar);
     bool    writePackedUInt(size_t);
 
     bool    writeStream(SkStream* input, size_t length);
 
     /**
-     * Append an SkData object to the stream, such that it can be read
-     * out of the stream using SkStream::readData().
-     *
-     * Note that the encoding method used to write the SkData object
-     * to the stream may change over time.  This method DOES NOT
-     * just write the raw content of the SkData object to the stream.
-     */
-    bool writeData(const SkData*);
-
-    /**
      * This returns the number of bytes in the stream required to store
      * 'value'.
      */
     static int SizeOfPackedUInt(size_t value);
 };
 
 ////////////////////////////////////////////////////////////////////////////////////////
 
 #include "SkString.h"
 #include <stdio.h>
@@ skipping 223 matching lines @@
 
 private:
     size_t fBytesWritten;
     typedef SkWStream INHERITED;
 };
 
 // for now
 typedef SkFILEStream SkURLStream;
 
 #endif