changes to allow chrome extension to load

changes to remove inline scripts, update manifest version, fix make.js
so compatibility.js isn't included for chrome. Due to new Chrome
extension changes outlined at
http://developer.chrome.com/extensions/manifestVersion.html

extensions/chrome/pdfHandler.js

@@ -0,0 +1,38 @@
+/*
+Copyright 2012 Mozilla Foundation
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+function isPdfDownloadable(details) {
+  return details.url.indexOf('pdfjs.action=download') >= 0;
+}
+
+chrome.webRequest.onBeforeRequest.addListener(
+  function(details) {
+    if (isPdfDownloadable(details))
+      return;
+
+    var viewerPage = 'content/web/viewer.html';
+    var url = chrome.extension.getURL(viewerPage) +
+      '?file=' + encodeURIComponent(details.url);
+    return { redirectUrl: url };
+  },
+  {
+    urls: [
+      "http://*/*.pdf", "https://*/*.pdf",
+      "file://*/*.pdf"
+    ],
+    types: [ "main_frame" ]
+  },
+  ["blocking"]);