Make some updates to extension iconography.

chrome/browser/ui/webui/ntp/app_launcher_handler.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/webui/ntp/app_launcher_handler.h"
 
 #include <stddef.h>
 
 #include <vector>
 
@@ skipping 142 matching lines @@
       service->IsExtensionEnabled(extension->id()) &&
       !extensions::ExtensionRegistry::Get(service->GetBrowserContext())
            ->GetExtensionById(extension->id(),
                               extensions::ExtensionRegistry::TERMINATED);
   extensions::GetExtensionBasicInfo(extension, enabled, value);
 
   value->SetBoolean("mayDisable", extensions::ExtensionSystem::Get(
       service->profile())->management_policy()->UserMayModifySettings(
       extension, NULL));
 
-  bool icon_big_exists = true;
   // Instead of setting grayscale here, we do it in apps_page.js.
-  GURL icon_big = extensions::ExtensionIconSource::GetIconURL(
-      extension,
-      extension_misc::EXTENSION_ICON_LARGE,
-      ExtensionIconSet::MATCH_BIGGER,
-      false,
-      &icon_big_exists);
-  value->SetString("icon_big", icon_big.spec());
-  value->SetBoolean("icon_big_exists", icon_big_exists);
-  bool icon_small_exists = true;
-  GURL icon_small = extensions::ExtensionIconSource::GetIconURL(
-      extension,
-      extension_misc::EXTENSION_ICON_BITTY,
-      ExtensionIconSet::MATCH_BIGGER,
-      false,
-      &icon_small_exists);
-  value->SetString("icon_small", icon_small.spec());
-  value->SetBoolean("icon_small_exists", icon_small_exists);
+  GURL icon = extensions::ExtensionIconSource::GetIconURL(
+      extension, extension_misc::EXTENSION_ICON_LARGE,
+      ExtensionIconSet::MATCH_BIGGER, false);
+  DCHECK_NE(GURL(), icon);
+  value->SetString("icon", icon.spec());
   value->SetInteger("launch_container",
                     extensions::AppLaunchInfo::GetLaunchContainer(extension));
   ExtensionPrefs* prefs = ExtensionPrefs::Get(service->profile());
   value->SetInteger("launch_type", extensions::GetLaunchType(prefs, extension));
   value->SetBoolean("is_component",
                     extension->location() == extensions::Manifest::COMPONENT);
   value->SetBoolean("is_webstore",
       extension->id() == extensions::kWebStoreAppId);
 
   AppSorting* sorting = ExtensionSystem::Get(service->profile())->app_sorting();
@@ skipping 701 matching lines @@
       base::FundamentalValue(!extension_id_prompting_.empty()));
 }
 
 bool AppLauncherHandler::ShouldShow(const Extension* extension) const {
   if (ignore_changes_ || !has_loaded_apps_ || !extension->is_app())
     return false;
 
   Profile* profile = Profile::FromWebUI(web_ui());
   return extensions::ui_util::ShouldDisplayInNewTabPage(extension, profile);
 }