Removed un-used commandline switches.

native_client_sdk/doc_generated/devguide/coding/3D-graphics.html

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 <section id="d-graphics">
 <span id="devguide-coding-3d-graphics"></span><h1 id="d-graphics"><span id="devguide-coding-3d-graphics"></span>3D Graphics</h1>
 <p>Native Client applications use the <a class="reference external" href="http://en.wikipedia.org/wiki/OpenGL_ES">OpenGL ES 2.0</a> API for 3D rendering. This document
 describes how to call the OpenGL ES 2.0 interface in a Native Client module and
 how to build an efficient rendering loop. It also explains how to validate GPU
 drivers and test for specific GPU capabilities, and provides tips to help ensure
 your rendering code runs efficiently.</p>
 <aside class="note">
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 and <a class="reference external" href="http://www.khronos.org/webgl/wiki/BlacklistsAndWhitelists">Khronos</a>. You
 can use these lists to include information in your documentation that warns
 users about dangerous drivers.</p>
 </section><section id="test-your-defenses">
 <h3 id="test-your-defenses">Test your defenses</h3>
 <p>You can test your driver validation code by running Chrome with the following
 flags (all at once) and watching how your application responds:</p>
 <ul class="small-gap">
 <li><code>--disable-webgl</code></li>
 <li><code>--disable-pepper-3d</code></li>
-<li><code>--disable-gl-multisampling</code></li>
+<li><code>--disable_multisampling</code></li>
 <li><code>--disable-accelerated-compositing</code></li>
 <li><code>--disable-accelerated-2d-canvas</code></li>
 </ul>
 </section></section><section id="calling-opengl-es-2-0-commands">
 <h2 id="calling-opengl-es-2-0-commands">Calling OpenGL ES 2.0 commands</h2>
 <p>There are three ways to write OpenGL ES 2.0 calls in Native Client.</p>
 <section id="use-pure-opengl-es-2-0-function-calls">
 <h3 id="use-pure-opengl-es-2-0-function-calls">Use &#8220;pure&#8221; OpenGL ES 2.0 function calls</h3>
 <p>You can make OpenGL ES 2.0 calls through a Pepper extension library.  The SDK
 example <code>examples/api/graphics_3d</code> works this way.  In the file
@@ skipping 271 matching lines @@
 2.0 implementation when you update a portion of a buffer (with
 <code>glSubBufferData</code> for example) the entire buffer must be reprocessed. To
 avoid this problem, keep static and dynamic data in different buffers.</li>
 <li><strong>Don&#8217;t call ``glDisable(GL_TEXTURE_2D)``.</strong> This is an OpenGL ES 2.0
 error. Each time it is called, an error messages will appear in Chrome&#8217;s
 <code>about:gpu</code> tab.</li>
 </ul>
 </section></section></section>
 
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