Make some updates to extension iconography.

chrome/browser/ui/webui/app_launcher_page_ui.cc

 // Copyright (c) 2013 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/webui/app_launcher_page_ui.h"
 
 #include <string>
 
 #include "base/memory/ref_counted_memory.h"
 #include "base/metrics/histogram_macros.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/webui/app_launcher_login_handler.h"
 #include "chrome/browser/ui/webui/metrics_handler.h"
 #include "chrome/browser/ui/webui/ntp/app_launcher_handler.h"
 #include "chrome/browser/ui/webui/ntp/app_resource_cache_factory.h"
 #include "chrome/browser/ui/webui/ntp/core_app_launcher_handler.h"
-#include "chrome/browser/ui/webui/ntp/favicon_webui_handler.h"
 #include "chrome/browser/ui/webui/ntp/ntp_resource_cache.h"
 #include "chrome/browser/ui/webui/theme_handler.h"
 #include "chrome/common/url_constants.h"
 #include "chrome/grit/generated_resources.h"
 #include "chrome/grit/theme_resources.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/browser/web_ui.h"
 #include "extensions/browser/extension_system.h"
@@ skipping 11 matching lines @@
     : content::WebUIController(web_ui) {
   web_ui->OverrideTitle(l10n_util::GetStringUTF16(IDS_APP_LAUNCHER_TAB_TITLE));
 
   if (!GetProfile()->IsOffTheRecord()) {
     ExtensionService* service =
         extensions::ExtensionSystem::Get(GetProfile())->extension_service();
     // We should not be launched without an ExtensionService.
     DCHECK(service);
     web_ui->AddMessageHandler(new AppLauncherHandler(service));
     web_ui->AddMessageHandler(new CoreAppLauncherHandler());
-    web_ui->AddMessageHandler(new FaviconWebUIHandler());
     web_ui->AddMessageHandler(new MetricsHandler());
   }
 
   // The theme handler can require some CPU, so do it after hooking up the most
   // visited handler. This allows the DB query for the new tab thumbs to happen
   // earlier.
   web_ui->AddMessageHandler(new ThemeHandler());
 
   std::unique_ptr<HTMLSource> html_source(
       new HTMLSource(GetProfile()->GetOriginalProfile()));
@@ skipping 78 matching lines @@
   return "style-src 'self' chrome://resources chrome://theme 'unsafe-inline';";
 }
 
 std::string AppLauncherPageUI::HTMLSource::GetContentSecurityPolicyImgSrc()
     const {
   return "img-src chrome://extension-icon chrome://theme chrome://resources "
       "data:;";
 }
 
 AppLauncherPageUI::HTMLSource::~HTMLSource() {}