Fix null pointer error.

BUG=106860
TEST=Manual

Review URL: http://codereview.chromium.org/8897017

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@113882 0039d316-1c4b-4281-b951-d872f2087c98

remoting/webapp/me2mom/client_screen.js

@@ -122,8 +122,7 @@ remoting.toggleScaleToFit = function(button) {
  */
 remoting.onResize = function() {
   if (remoting.clientSession)
-    remoting.clientSession.onWindowSizeChanged();
-  remoting.toolbar.center();
+    remoting.clientSession.onResize();
 }
 
 /**

remoting/webapp/me2mom/client_session.js

@@ -354,7 +354,7 @@ remoting.ClientSession.prototype.setState_ = function(newState) {
  *
  * @return {void} Nothing.
  */
-remoting.ClientSession.prototype.onWindowSizeChanged = function() {
+remoting.ClientSession.prototype.onResize = function() {
   this.updateDimensions();
 };
 

remoting/webapp/me2mom/toolbar.js

@@ -22,6 +22,16 @@ remoting.Toolbar = function(toolbar) {
    * @private
    */
   this.toolbar_ = toolbar;
+  /**
+   * @type {boolean} False if the tool-bar is currently hidden, or should be
+   *      hidden once the over-shoot timer expires; true otherwise.
+   */
+  this.visible = false;
+  /**
+   * @type {number?} The id of the current timer, if any.
+   */
+  this.timerId = null;
+
   /** @type {remoting.Toolbar} */
   var that = this;
 
@@ -44,15 +54,7 @@ remoting.Toolbar = function(toolbar) {
     that.showForAtLeast_(1000);
   };
 
-  /**
-   * @type {boolean} False if the tool-bar is currently hidden, or should be
-   *      hidden once the over-shoot timer expires; true otherwise.
-   */
-  this.visible = false;
-  /**
-   * @type {number?} The id of the current timer, if any.
-   */
-  this.timerId = null;
+  window.addEventListener('resize', function() { that.center(); }, false);
 };
 
 /**