Merge 159156 - Extensions Docs Server: Fix headings with no IDs

chrome/common/extensions/docs/templates/articles/tut_migration_to_manifest_v2.html

Index: chrome/common/extensions/docs/templates/articles/tut_migration_to_manifest_v2.html
===================================================================
--- chrome/common/extensions/docs/templates/articles/tut_migration_to_manifest_v2.html	(revision 159604)
+++ chrome/common/extensions/docs/templates/articles/tut_migration_to_manifest_v2.html	(working copy)
@@ -123,7 +123,7 @@
 and replaces a few old APIs with newer ones.
 </p>
 
-<h3>Changes to browser actions</h3>
+<h3 id="browser_actions">Changes to browser actions</h3>
 
 <p>
 The browser actions API introduces some naming changes:</p>
@@ -145,7 +145,7 @@
   </ul>
 </ul>
 
-<h3>Changes to page actions</h3>
+<h3 id="page_actions">Changes to page actions</h3>
 
 <p>Similar to the changes for browser actions,
   the page actions API has also changed:</p>
@@ -167,7 +167,7 @@
   </ul>
 </ul>
 
-<h3>Removed and changed APIs</h3>
+<h3 id="removed_and_changed">Removed and changed APIs</h3>
 
 <p>
 A few extension APIs have been removed and replaced with new counterparts:
@@ -195,7 +195,7 @@
 you should read more about this policy to understand its implications.
 </p>
 
-<h3>Inline scripts and event handlers disallowed</h3>
+<h3 id="inline_scripts">Inline scripts and event handlers disallowed</h3>
 
 <p>
 Due to the use of <a href="contentSecurityPolicy.html">Content Security Policy</a>,
@@ -252,7 +252,7 @@
 your extension’s behavior from its user interface markup.
 </p>
 
-<h3>Embedding content</h3>
+<h3 id="embedding">Embedding content</h3>
 
 <p>
 There are some scenarios where your extension might embed content
@@ -305,7 +305,7 @@
       </pre></li>
 </ol>
 
-<h3>Using dynamic script evaluation</h3>
+<h3 id="using">Using dynamic script evaluation</h3>
 
 <p>
 Perhaps one of the biggest changes in the new manifest v2 scheme is