Add a chrome://nacl page to show if NaCl is enabled and if PNaCl is installed.

chrome/browser/resources/about_nacl.js

Index: chrome/browser/resources/about_nacl.js
diff --git a/chrome/browser/resources/about_nacl.js b/chrome/browser/resources/about_nacl.js
new file mode 100644
index 0000000000000000000000000000000000000000..344918dd731e3c48ac11be637e1938780aab1a49
--- /dev/null
+++ b/chrome/browser/resources/about_nacl.js
@@ -0,0 +1,34 @@
+/**
+* Takes the |moduleListData| input argument which represents data about

[James Hawkins, 2012/08/09 17:16:55]

Indentation is off, should be two more spaces.

[jvoung (off chromium), 2012/08/09 20:03:35]

double checking on two more spaces:

/**
  *
  */

or one more space?

/**
 *
 */

went with one for now.

[James Hawkins, 2012/08/11 19:24:28]

Sorry, the latter.

+* the currently available modules and populates the html jstemplate
+* with that data. It expects an object structure like the above.
+* @param {Object} moduleListData Information about available modules
+*/
+function renderTemplate(moduleListData) {

[James Hawkins, 2012/08/09 17:16:55]

These need to be wrapped in a namespace.

[jvoung (off chromium), 2012/08/09 20:03:35]

Done.

+  // This is the javascript code that processes the template:

[James Hawkins, 2012/08/09 17:16:55]

nit: // Process the template.

[jvoung (off chromium), 2012/08/09 20:03:35]

Done.

+  var input = new JsEvalContext(moduleListData);
+  var output = document.getElementById('naclInfoTemplate');
+  jstProcess(input, output);
+}
+
+/**
+* Asks the C++ NaClUIDOMHandler to get details about the NaCl and return
+* the data in returnNaClInfo() (below).
+*/
+function requestNaClInfo() {
+  chrome.send('requestNaClInfo');
+}
+
+/**
+* Called by the WebUI to re-populate the page with data representing the
+* current state of NaCl.
+* @param {Object} moduleListData Information about available modules
+*/
+function returnNaClInfo(moduleListData) {
+  document.getElementById('loading-message').style.visibility = 'hidden';
+  document.getElementById('body-container').style.visibility = 'visible';
+  renderTemplate(moduleListData);
+}
+
+// Get data and have it displayed upon loading.
+document.addEventListener('DOMContentLoaded', requestNaClInfo);