moved some chromium-specific code into chromium.js (using extension.navigator namespace)

js/background.js

@@ -17,7 +17,7 @@
 textsecure.registerOnLoadFunction(function() {
 	if (!localStorage.getItem('first_install_ran')) {
 		localStorage.setItem('first_install_ran', 1);
-		chrome.tabs.create({url: "options.html"});
+		extension.navigator.tabs.create("options.html");
 	} else {
 		if (isRegistrationDone()) {
 			textsecure.subscribeToPush(function(message) {
@@ -26,7 +26,7 @@ textsecure.registerOnLoadFunction(function() {
 							': "' + getString(message.message.body) + '"');
 				var newUnreadCount = textsecure.storage.getUnencrypted("unreadCount", 0) + 1;
 				textsecure.storage.putUnencrypted("unreadCount", newUnreadCount);
-				chrome.browserAction.setBadgeText({text: newUnreadCount + ""});
+				extension.navigator.setBadgeText(newUnreadCount);
 			});
 		}
 	}

js/chromium.js

@@ -14,6 +14,24 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+window.extension = window.extension || {};
+
+window.extension.navigator = function() {
+    var self = {};
+    
+    var tabs = {};
+    tabs.create = function(url){
+        chrome.tabs.create({url: url});
+    };
+    self.tabs = tabs;
+    
+    self.setBadgeText = function(text){
+        chrome.browserAction.setBadgeText({text: text + ""});
+    };
+    
+    return self;
+}();
+
 // Random shared utilities that are used only by chromium things
 
 function registrationDone() {

js/popup.js

@@ -17,11 +17,11 @@
 
 textsecure.registerOnLoadFunction(function() {
 	if (textsecure.storage.getUnencrypted("number_id") === undefined) {
-		chrome.tabs.create({url: "options.html"});
+		extension.navigator.tabs.create("options.html");
 	} else {
 		$('.my-number').text(textsecure.storage.getUnencrypted("number_id").split(".")[0]);
 		textsecure.storage.putUnencrypted("unreadCount", 0);
-		chrome.browserAction.setBadgeText({text: ""});
+		extension.navigator.setBadgeText("");
 		$("#me").click(function() {
 			$('#popup_send_numbers').val($('.my-number').text());
 		});