Delete code for and references to mini-gallery and theme install bubbles.

chrome/common/extensions/docs/static/themes.html

 <div id="pageData-showTOC" class="pageData">true</div>
 
 <p>
 A <em>theme</em> is a special kind of extension
 that changes the way the browser looks.
 Themes are <a href="packaging.html">packaged</a> like regular extensions,
 but they don't contain JavaScript or HTML code.
 </p>
 
 <p>
 You can find and try a bunch of themes at the
-<a href="https://tools.google.com/chrome/intl/en/themes/">themes gallery</a>.
+<a href="https://chrome.google.com/webstore/category/themes">Chrome Web Store</a>.
 </p>
 
 <img src="images/themes-1.gif"
      width="100" height="80" alt="grassy theme" />
 
 <img src="images/themes-2.gif"
      width="100" height="80" alt="dark theme" />
 
 <img src="images/themes-3.gif"
      width="100" height="80" alt="foggy theme" />
@@ skipping 117 matching lines @@
 
 <h2 id="moredoc"> Additional documentation </h2>
 
 <p>
 Community-written documentation to help you write themes is here:
 </p>
 
 <blockquote>
 <a href="http://code.google.com/p/chromium/wiki/ThemeCreationGuide">http://code.google.com/p/chromium/wiki/ThemeCreationGuide</a>
 </blockquote>