rewind at the start of each FontStream api (since we rewinding internally anyway)

trunk/src/core/SkFontStream.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 "SkEndian.h"
 #include "SkFontStream.h"
 #include "SkStream.h"
@@ skipping 71 matching lines @@
     SfntHeader() : fCount(0), fDir(NULL) {}
     ~SfntHeader() { sk_free(fDir); }
 
     /** If it returns true, then fCount and fDir are properly initialized.
         Note: fDir will point to the raw array of SkSFNTDirEntry values,
         meaning they will still be in the file's native endianness (BE).
 
         fDir will be automatically freed when this object is destroyed
      */
     bool init(SkStream* stream) {
+        stream->rewind();
+
         size_t offsetToDir;
         fCount = count_tables(stream, &offsetToDir);
         if (0 == fCount) {
             return false;
         }
 
         stream->rewind();
         if (stream->skip(offsetToDir) != offsetToDir) {
             return false;
         }
@@ skipping 56 matching lines @@
                 }
                 if (stream->read(data, length) != length) {
                     return 0;
                 }
             }
             return length;
         }
     }
     return 0;
 }