Add setBounds method and browsertest for get/set bounds to app window API

chrome/renderer/resources/extensions/app_window_custom_bindings.js

Index: chrome/renderer/resources/extensions/app_window_custom_bindings.js
diff --git a/chrome/renderer/resources/extensions/app_window_custom_bindings.js b/chrome/renderer/resources/extensions/app_window_custom_bindings.js
index b1ed42f3edbcc392a8021db8aebc02c6c3c0f811..02870bbe85610349a7b44678e0ac6bef92ad27d3 100644
--- a/chrome/renderer/resources/extensions/app_window_custom_bindings.js
+++ b/chrome/renderer/resources/extensions/app_window_custom_bindings.js
@@ -23,7 +23,7 @@ chromeHidden.registerCustomHook('app.window', function(bindingsAPI) {
       // No route to created window. If given a callback, trigger it with an
       // undefined object.
       if (request.callback) {
-        request.callback()
+        request.callback();
         delete request.callback;
       }
       return;
@@ -69,7 +69,7 @@ chromeHidden.registerCustomHook('app.window', function(bindingsAPI) {
   };
 
   // This is an internal function, but needs to be bound with setHandleRequest
-  // because it is called from a different JS context
+  // because it is called from a different JS context.
   apiFunctions.setHandleRequest('initializeAppWindow', function(params) {
     var AppWindow = function() {};
     forEach(chromeHidden.internalAPIs.app.currentWindowInternal, function(fn) {
@@ -83,14 +83,47 @@ chromeHidden.registerCustomHook('app.window', function(bindingsAPI) {
     AppWindow.prototype.close = function() {
       this.contentWindow.close();
     };
+    AppWindow.prototype.getBounds = function() {
+      var bounds = chromeHidden.appWindowData.bounds;
+      return { left: bounds.left, top: bounds.top,
+               width: bounds.width, height: bounds.height };
+    };
 
     Object.defineProperty(AppWindow.prototype, 'id', {get: function() {
       return chromeHidden.appWindowData.id;
     }});
 
     chromeHidden.appWindowData = {
-      id: params.id || ''
+      id: params.id || '',
+      bounds: { left: 0, top: 0, width: 0, height: 0 }
     };
     chromeHidden.currentAppWindow = new AppWindow;
   });
 });
+
+chromeHidden.updateAppWindowBounds = function(info) {
+  var data = chromeHidden.appWindowData;
+  if (!data)
+    return;
+  data.bounds.left = info.left;
+  data.bounds.top = info.top;
+  data.bounds.width = info.width;
+  data.bounds.height = info.height;
+};
+
+chromeHidden.registerCustomHook('app.currentWindowInternal',
+                                function(bindingsAPI) {
+  var apiFunctions = bindingsAPI.apiFunctions;
+  apiFunctions.setUpdateArgumentsPostValidate('setBounds', function(bounds) {
+    // Cache the update locally so that getBounds can immediately return the
+    // updated value.
+    var cachedBounds = chromeHidden.appWindowData.bounds;
+    var names = ['left', 'top', 'width', 'height'];
+    for (var i = 0; i < names.length; i++) {
+      if (typeof(bounds[names[i]]) != 'undefined')
+        cachedBounds[names[i]] = bounds[names[i]];
+    }
+    return arguments;
+  });
+});
+