Remove the blue tool-bar for apps v2.

remoting/webapp/client_session.js

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 /**
  * @fileoverview
  * Class handling creation and teardown of a remoting client session.
  *
  * The ClientSession class controls lifetime of the client plugin
  * object and provides the plugin with the functionality it needs to
@@ skipping 591 matching lines @@
 
   // Leave full-screen mode, and stop listening for related events.
   var listener = this.callOnFullScreenChanged_;
   remoting.fullscreen.syncWithMaximize(false);
   remoting.fullscreen.activate(
       false,
       function() {
         remoting.fullscreen.removeListener(listener);
       });
   if (remoting.windowFrame) {
-    remoting.windowFrame.setConnected(false);
+    remoting.windowFrame.setClientSession(null);
+  } else {
+    remoting.toolbar.setClientSession(null);
   }
-  remoting.toolbar.setClientSession(null);
 
   // Remove mediasource-rendering class from the container - this will also
   // hide the <video> element.
   this.container_.classList.remove('mediasource-rendering');
 
   this.container_.removeEventListener('mousemove',
                                       this.updateMouseCursorPosition_,
                                       true);
 };
 
@@ skipping 363 matching lines @@
     if (this.resizeToClient_) {
       var clientArea = this.getClientArea_();
       this.plugin_.notifyClientResolution(clientArea.width,
                                           clientArea.height,
                                           window.devicePixelRatio);
     }
     // Activate full-screen related UX.
     remoting.fullscreen.addListener(this.callOnFullScreenChanged_);
     remoting.fullscreen.syncWithMaximize(true);
     if (remoting.windowFrame) {
-      remoting.windowFrame.setConnected(true);
+      remoting.windowFrame.setClientSession(this);
+    } else {
+      remoting.toolbar.setClientSession(this);
     }
-    remoting.toolbar.setClientSession(this);
 
     this.container_.addEventListener('mousemove',
                                      this.updateMouseCursorPosition_,
                                      true);
 
   } else if (status == remoting.ClientSession.State.FAILED) {
     switch (error) {
       case remoting.ClientSession.ConnectionError.HOST_IS_OFFLINE:
         this.error_ = remoting.Error.HOST_IS_OFFLINE;
         break;
@@ skipping 531 matching lines @@
  */
 remoting.ClientSession.prototype.updateMouseCursorImage_ =
     function(url, hotspotX, hotspotY) {
   this.mouseCursorOverlay_.hidden = !url;
   if (url) {
     this.mouseCursorOverlay_.style.marginLeft = '-' + hotspotX + 'px';
     this.mouseCursorOverlay_.style.marginTop = '-' + hotspotY + 'px';
     this.mouseCursorOverlay_.src = url;
   }
  };