[Web Intents] WebIntentsPickerController will now fetch icon for suggested extensions.

chrome/browser/ui/gtk/web_intent_picker_gtk.cc

 // 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.
 
 #include "chrome/browser/ui/gtk/web_intent_picker_gtk.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/callback.h"
@@ skipping 117 matching lines @@
 }
 
 void WebIntentPickerGtk::OnFaviconChanged(WebIntentPickerModel* model,
                                           size_t index) {
   const WebIntentPickerModel::InstalledService& installed_service =
       model->GetInstalledServiceAt(index);
   GtkWidget* button = GetServiceButton(index);
   SetServiceButtonImage(button, installed_service.favicon.ToGdkPixbuf());
 }
 
+void WebIntentPickerGtk::OnExtensionIconChanged(WebIntentPickerModel* model,
+                                                const string16& extension_id) {
+  // TODO(binji): implement.
+}
+
 void WebIntentPickerGtk::OnInlineDisposition(WebIntentPickerModel* model) {
   const WebIntentPickerModel::InstalledService& installed_service =
       model->GetInstalledServiceAt(model->inline_disposition_index());
   const GURL& url = installed_service.url;
 
   content::WebContents* web_contents = content::WebContents::Create(
       browser_->profile(), NULL, MSG_ROUTING_NONE, NULL, NULL);
   inline_disposition_tab_contents_.reset(new TabContentsWrapper(web_contents));
   inline_disposition_delegate_.reset(new WebIntentInlineDispositionDelegate);
   web_contents->SetDelegate(inline_disposition_delegate_.get());
@@ skipping 128 matching lines @@
   g_signal_connect(contents_, "destroy", G_CALLBACK(&OnDestroyThunk), this);
 }
 
 GtkWidget* WebIntentPickerGtk::GetServiceButton(size_t index) {
   GList* button_list = gtk_container_get_children(GTK_CONTAINER(button_vbox_));
   GtkWidget* button = GTK_WIDGET(g_list_nth_data(button_list, index));
   DCHECK(button != NULL);
 
   return button;
 }