Update code to use helper function for better readability/searching.

src/ports/SkXMLParser_tinyxml.cpp

 
 /*
  * 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.
  */
 
 
 #include "SkXMLParser.h"
@@ skipping 40 matching lines @@
         printf("tinyxml error: <%s> row[%d] col[%d]\n", doc.ErrorDesc(), doc.ErrorRow(), doc.ErrorCol());
         return false;
     }
 
     walk_elem(parser, doc.RootElement());
     return true;
 }
 
 bool SkXMLParser::parse(SkStream& stream)
 {
-    size_t size = stream.read(NULL, 0);
+    size_t size = stream.getLength();
 
     SkAutoMalloc    buffer(size + 1);
     char*           buf = (char*)buffer.get();
 
     stream.read(buf, size);
     buf[size] = 0;
 
     return load_buf(this, buf);
 }
 
 bool SkXMLParser::parse(const char doc[], size_t len)
 {
     SkAutoMalloc    buffer(len + 1);
     char*           buf = (char*)buffer.get();
 
     memcpy(buf, doc, len);
     buf[len] = 0;
 
     return load_buf(this, buf);
 }
 
 void SkXMLParser::GetNativeErrorString(int error, SkString* str)
 {
     if (str)
         str->set("GetNativeErrorString not implemented for TinyXml");
 }