Wires keeping the launcher up to date with the browser.

ui/aura_shell/launcher/launcher_view.cc

 // Copyright (c) 2011 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.
 
 #include "ui/aura_shell/launcher/launcher_view.h"
 
 #include "base/utf_string_conversions.h"
 #include "grit/ui_resources.h"
 #include "ui/aura_shell/launcher/launcher_model.h"
 #include "ui/aura_shell/launcher/tabbed_launcher_button.h"
@@ skipping 105 matching lines @@
   Resize();
 }
 
 void LauncherView::LauncherItemRemoved(int index) {
   // TODO: to support animations is going to require coordinate conversions.
   RemoveChildView(child_at(index + 1));
   Resize();
 }
 
 void LauncherView::LauncherItemImagesChanged(int index) {
-  // TODO: implement me.
+  // TODO: implement better coordinate conversion.
+  const LauncherItem& item(model_->items()[index]);
+  if (item.type == TYPE_TABBED) {
+    TabbedLauncherButton* button =
+        static_cast<TabbedLauncherButton*>(child_at(index + 1));
+    gfx::Size pref = button->GetPreferredSize();
+    button->SetImages(item.tab_images);
+    if (pref != button->GetPreferredSize())
+      Resize();
+    else
+      button->SchedulePaint();
+  }
 }
 
 void LauncherView::ButtonPressed(views::Button* sender,
                                  const views::Event& event) {
   ShellDelegate* delegate = Shell::GetInstance()->delegate();
   if (!delegate)
     return;
   if (sender == new_browser_button_) {
     delegate->CreateNewWindow();
   } else if (sender == show_apps_button_) {
     delegate->ShowApps();
   } else {
     int index = GetIndexOf(sender);
     DCHECK_NE(-1, index);
     // TODO: animations will require coordinate transforms.
     delegate->LauncherItemClicked(model_->items()[index - 1]);
   }
 }
 
 }  // namespace internal
 }  // namespace aura_shell