Update gm so it doe not write the size of the pdf (writeData writes the length of the data too)

gm/gmmain.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.
  */
 
 /*
  * Code for the "gm" (Golden Master) rendering comparison tool.
  *
@@ skipping 263 matching lines @@
                 gm_fprintf(stderr, "\t\t%s pixel_error\n", fFailedTests[i].fName.c_str());
             } else {
                 gm_fprintf(stderr, "\t\t%s\n", fFailedTests[i].fName.c_str());
             }
         }
     }
 
     static bool write_document(const SkString& path,
                                const SkDynamicMemoryWStream& document) {
         SkFILEWStream stream(path.c_str());
         SkAutoDataUnref data(document.copyToData());

[epoger, 2013/03/15 17:01:46]

Filed https://code.google.com/p/skia/issues/detail?id=1167 ('update docs for
SkStream.readData() and SkStream.writeData() to indicate length is included') to
Mike.

-        return stream.writeData(data.get());
+        return stream.write(data.get()->data(), data.get()->size());

[epoger, 2013/03/15 17:01:46]

Also, Mike... does stream.write() guarantee that it will always write out all of
the data?  I tried to address this in
https://codereview.appspot.com/7300071/#msg5 , but I never heard back from you
on it.

[epoger, 2013/03/28 20:20:44]

The last question here is whether write() is guaranteed to write out all of the
data passed in, or if it might only write out part of it.

Mike?

     }
 
     /**
      * Prepare an SkBitmap to render a GM into.
      *
      * After you've rendered the GM into the SkBitmap, you must call
      * complete_bitmap()!
      *
      * @todo thudson 22 April 2011 - could refactor this to take in
      * a factory to generate the context, always call readPixels()
@@ skipping 1426 matching lines @@
     SkGraphics::Term();
 
     return (0 == testsFailed) ? 0 : -1;
 }
 
 #if !defined(SK_BUILD_FOR_IOS) && !defined(SK_BUILD_FOR_NACL)
 int main(int argc, char * const argv[]) {
     return tool_main(argc, (char**) argv);
 }
 #endif