Window state restored with previous saved window state (fullscreen or normal).

Window startup size changed to 16:9 aspect ratio = 960x540.
After closing the game, window restored in previous state.

static/js/background.js

@@ -1,8 +1,45 @@
+var windowState = 'normal';
+
 chrome.app.runtime.onLaunched.addListener(function() {
-    chrome.app.window.create('index.html', {
-        state: "normal",
-        bounds: { 
-    		width: 850, height: 500
-    	}
-    });
+    if (chrome.storage) {
+        // load stored window settings
+        chrome.storage.sync.get('windowState', function(item) {
+            windowState = (item && item.windowState)
+                ? item.windowState
+                : windowState;
+            createWindow(windowState);
+        });
+    } else {
+        createWindow(windowState);
+    }
 });
+
+function createWindow(state) {
+    chrome.app.window.create('index.html', {
+        state: state,
+        bounds: {
+            width: 960,
+            height: 540
+        }
+    }, function(window) {
+        window.onFullscreened.addListener(onFullscreened);
+        window.onBoundsChanged.addListener(onBoundsChanged);
+    });
+}
+
+
+function onFullscreened() {
+    // save windowState: 'fullscreen'
+    windowState != 'fullscreen' && saveItem('windowState', 'fullscreen', null);
+}
+
+function onBoundsChanged() {
+    // save windowState: 'normal'
+    windowState != 'normal' && saveItem('windowState', 'normal', null);
+}
+
+function saveItem(key, value, callback) {
+    var item = { };
+    item[key] = value;
+    chrome.storage && chrome.storage.sync.set(item, callback);
+}

static/js/messages.js

@@ -30,7 +30,6 @@ function handleMessage(msg) {
                     });
                 });
                 showApps(api);
-                chrome.app.window.current().restore();
             });
 
         } else if(msg.data === 'Connection Established') {