[NaCl SDK] rename nacl_io demo.

native_client_sdk/doc_generated/devguide/coding/nacl_io.html

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 <section id="the-nacl-io-library">
 <span id="nacl-io"></span><h1 id="the-nacl-io-library"><span id="nacl-io"></span>The nacl_io Library</h1>
 <div class="contents local" id="contents" style="display: none">
 <ul class="small-gap">
 <li><a class="reference internal" href="#introduction" id="id1">Introduction</a></li>
 <li><a class="reference internal" href="#using-nacl-io" id="id2">Using nacl_io</a></li>
 <li><p class="first"><a class="reference internal" href="#the-nacl-io-demo" id="id3">The nacl_io demo</a></p>
 <ul class="small-gap">
@@ skipping 72 matching lines @@
 <h2 id="the-nacl-io-demo">The nacl_io demo</h2>
 <section id="building-and-running-the-demo">
 <h3 id="building-and-running-the-demo">Building and running the demo</h3>
 <p>The demo application launches a Native Client module that mounts three file
 systems and displays a set of controls that let you work with them:</p>
 <img alt="/native-client/images/nacl_io1.png" src="/native-client/images/nacl_io1.png" />
 <p>Follow these steps to build and run the demo:</p>
 <ul class="small-gap">
 <li><p class="first">Open a terminal in the demo directory:</p>
 <pre class="prettyprint">
-$ cd $NACL_SDK_ROOT/examples/demo/nacl_io
+$ cd $NACL_SDK_ROOT/examples/demo/nacl_io_demo
 </pre>
 </li>
 <li><p class="first">run the demo:</p>
 <pre class="prettyprint">
 $ make run
 </pre>
 </li>
 </ul>
 <p>Once the demo is running, try these operations:</p>
 <ol class="arabic simple">
@@ skipping 103 matching lines @@
   bytes_written = fwrite(data, 1, data_len, file);
 
   *output = PrintfToNewString(&quot;fwrite\1%s\1%d&quot;, file_index_string,
                               bytes_written);
   return 0;
 }
 </pre>
 </section></section></section><section id="reference-information">
 <h2 id="reference-information">Reference information</h2>
 <p>The example discussed here is included in the SDK in the directory
-<code>examples/demo/nacl_io</code>.</p>
+<code>examples/demo/nacl_io_demo</code>.</p>
 <p>The nacl_io library is included in the SDK toolchain and is not a part of the
 Pepper API. For reference information related to the nacl_io interface see
 its header file in the SDK directory, located at
 <code>include/nacl_io/nacl_io.h</code>.</p>
 <p>For more about the HTML5 file system read the <a class="reference external" href="http://dev.w3.org/2009/dap/file-system/pub/FileSystem/">specification</a>.</p>
 </section></section>
 
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