Remove scheme restriction for extension context menu items.

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

Index: chrome/common/extensions/docs/static/contextMenus.html
diff --git a/chrome/common/extensions/docs/static/contextMenus.html b/chrome/common/extensions/docs/static/contextMenus.html
index 26af21fee830d886b7e224d7bceecf687997371e..e993372103dd4711baa5970801619e89d60bc86a 100644
--- a/chrome/common/extensions/docs/static/contextMenus.html
+++ b/chrome/common/extensions/docs/static/contextMenus.html
@@ -20,6 +20,22 @@ Google Chrome automatically collapses them
 into a single parent menu.
 </p>
 
+<p>
+Context menu items can appear in any document
+(or frame within a document),
+even those with file:// or chrome:// URLs.
+To control which documents your items can appear in,
+specify the documentUrlPatterns field
+when you call the create() or update() method.
+</p>
+
+<p class="note">
+<strong>Version note:</strong>
+Before Chrome 14, <!-- PENDING(asargent): fix version # -->
+your items could appear only in documents with http://
+or https:// URLs.
+</p>
+
 <h2 id="manifest">Manifest</h2>
 <p>You must declare the "contextMenus" permission
 in your extension's manifest to use the API.