add fsync to try to get complete skps from webpage picture capture

include/core/SkOSFile.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.
  */
 
 
 // TODO: add unittests for all these operations
@@ skipping 23 matching lines @@
 /** Return true if the file could seek back to the beginning
 */
 bool    sk_frewind(FILE*);
 
 size_t  sk_fread(void* buffer, size_t byteCount, FILE*);
 size_t  sk_fwrite(const void* buffer, size_t byteCount, FILE*);
 
 char*   sk_fgets(char* str, int size, FILE* f);
 
 void    sk_fflush(FILE*);
+void    sk_fsync(FILE*);
 
 bool    sk_fseek(FILE*, size_t);
 bool    sk_fmove(FILE*, long);
 size_t  sk_ftell(FILE*);
 
 /** Maps a file into memory. Returns the address and length on success, NULL otherwise.
  *  The mapping is read only.
  *  When finished with the mapping, free the returned pointer with sk_fmunmap.
  */
 void*   sk_fmmap(FILE* f, size_t* length);
@@ skipping 85 matching lines @@
      *  Behaves like python's os.path.dirname. If the fullPath is
      *  /dir/subdir/ the return will be /dir/subdir/
      *  @param fullPath Full path to the file.
      *  @return SkString The dir containing the file - anything preceding the
      *      final slash, or the full name if ending in a slash.
      */
     static SkString Dirname(const char* fullPath);
 };
 
 #endif