Make vector_as_array use std::vector::data and switch a few directories.

styleguide/c++/c++11.html

Index: styleguide/c++/c++11.html
diff --git a/styleguide/c++/c++11.html b/styleguide/c++/c++11.html
index e132f6853de48402be9d4479d42fda729488fec5..3e6c4dd34704845965b58d2c9d0534037a2c020d 100644
--- a/styleguide/c++/c++11.html
+++ b/styleguide/c++/c++11.html
@@ -274,6 +274,14 @@ Parameter pack</a></td>
 </tr>
 
 <tr>
+<td>Access to underlying <code>std::vector</code> data</td>

[davidben, 2015/11/16 21:27:38]

I felt a little silly writing all this text for one function. :-) Let me know if
you want me to condense or generalize or omit it or something.

+<td><code>v.data()</code></td>
+<td>Returns a pointer to a <code>std::vector</code>'s underlying data, accounting for empty vectors.</td>
+<td><a href="http://en.cppreference.com/w/cpp/container/vector/data">std::vector::data</a></td>
+<td>May not be used in <code>//base</code> headers yet (<a href="https://crbug.com/555825">bug</a>). <a href="https://groups.google.com/a/chromium.org/forum/#!topic/cxx/16V7fmtbzok">Discussion thread</a>.</td>

[danakj, 2015/11/16 21:39:48]

mark@ said he'd wrap callers that this broke for crashpad, so you can drop the
base headers part.

[davidben, 2015/11/16 21:55:37]

Done. (+mark FYI)

+</tr>
+
+<tr>
 <td>Containers containing movable types</td>
 <td><code>vector&lt;scoped_ptr&gt;</code></td>
 <td>Enables containers that contain move-only types like <code>scoped_ptr</code></td>