Updated docs to explain "intents" section in extension manifest.

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

 <div id="pageData-name" class="pageData">Formats: Manifest Files</div>
 <div id="pageData-showTOC" class="pageData">true</div>
 
 <p>
 Every extension, installable web app, and theme has a
 <a href="http://www.json.org">JSON</a>-formatted manifest file,
 named <code>manifest.json</code>,
 that provides important information.
 </p>
 
@@ skipping 25 matching lines @@
   "<a href="#app">app</a>": {...},
 
   <em>// Add any of these that you need</em>
   "<a href="background_pages.html">background</a>": {...},
   "<a href="override.html">chrome_url_overrides</a>": {...},
   "<a href="content_scripts.html">content_scripts</a>": [...],
   "<a href="contentSecurityPolicy.html">content_security_policy</a>": "<em>policyString</em>",
   "<a href="fileBrowserHandler.html">file_browser_handlers</a>": [...],
   "<a href="#homepage_url">homepage_url</a>": "http://<em>path/to/homepage</em>",
   "<a href="#incognito">incognito</a>": "spanning" <em>or</em> "split",
+  "<a href="#intents">intents</a>": {...}
   "<a href="#key">key</a>": "<em>publicKey</em>",
   "<a href="#minimum_chrome_version">minimum_chrome_version</a>": "<em>versionString</em>",
 
   "<a href="#nacl_modules">nacl_modules</a>": [...],
   "<a href="#offline_enabled">offline_enabled</a>": true,
   "<a href="omnibox.html">omnibox</a>": { "keyword": "<em>aString</em>" },
   "<a href="options.html">options_page</a>": "<em>aFile</em>.html",
   "<a href="#permissions">permissions</a>": [...],
   "<a href="npapi.html">plugins</a>": [...],
   "<a href="#requirements">requirements</a>": {...},
@@ skipping 148 matching lines @@
 The processes are unable to communicate with each other.
 </p>
 
 <p>
 As a rule of thumb, if your extension or app needs to load a tab in an incognito browser, use
 <em>split</em> incognito behavior. If your extension or app needs to be logged
 into a remote server or persist settings locally, use <em>spanning</em>
 incognito behavior.
 </p>
 
+<h3 id="intents">intents</h3>
+
+<p>
+A dictionary that specifies all intent handlers provided by this extension or app. Each key in the dictionary specifies the an action verb that is handled by this extension. The following example specifies two handlers for the action verb "<a href="http://webintents.org/share">http://webintents.org/share</a>".
+</p>
+
+<pre>
+{
+  "name": "test",
+  "version": "1",
+  "intents": {
+    "http://webintents.org/share": [
+      { 
+        "type": ["text/uri-list"],
+        "href": "/services/sharelink.html",
+        "title" : "Sample Link Sharing Intent",
+        "disposition" : "inline"
+      },
+      {
+        "type": ["image/*"],
+        "href": "/services/shareimage.html",
+        "title" : "Sample Image Sharing Intent",
+        "disposition" : "window"
+      }
+    ]
+  }  
+}
+</pre>
+
+<p>
+The value of "type" is an array of mime types that is supported by this handler. The "href" indicates the URL of the page that handles the intent. For hosted apps, these URLs must be within the allowed set of URLs. For extensions, all URLs are inside the extension and considered relative to the extension root URL. 
+</p>
+
+<p>
+The "title" is displayed in the intent picker UI when the user initiates the action specific to the handler.
+</p>
+
+<p>
+The "disposition" is either "inline" or "window". Intents with "window" disposition will open a new tab when invoked. Intents with "inline" disposition will be displayed inside the intent picker when invoked.
+</p>
+
+<p>
+For more information on intents, refer to the <a href="http://dvcs.w3.org/hg/web-intents/raw-file/tip/spec/Overview.html">Web Intents specification</a> and <a href="http://www.webintents.org">webintents.org</a>.
+</p>
+
 <h3 id="key">key</h3>
 
 <p>
 This value can be used to control
 the unique ID of an extension, app, or theme when
 it is loaded during development.
 </p>
 
 <p class="note">
 <b>Note:</b> You don't usually need to
@@ skipping 520 matching lines @@
 </a> 2 or above are <strong>blocked by default</strong>, and must be whitelisted
 for use via this property.
 </p>
 
 <p>
 Resources inside of packages using <code>manifest_version</code> 1 are available
 by default, but <em>if</em> you do set this property, then it will be treated as
 a complete list of all whitelisted resources. Resources not listed will be
 blocked.
 </p>
+