Make some updates to extension iconography.

chrome/browser/extensions/extension_util.cc

 // Copyright 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/extensions/extension_util.h"
 
 #include <vector>
 
 #include "base/command_line.h"
 #include "base/logging.h"
@@ skipping 292 matching lines @@
 
 std::unique_ptr<base::DictionaryValue> GetExtensionInfo(
     const Extension* extension) {
   DCHECK(extension);
   std::unique_ptr<base::DictionaryValue> dict(new base::DictionaryValue);
 
   dict->SetString("id", extension->id());
   dict->SetString("name", extension->name());
 
   GURL icon = extensions::ExtensionIconSource::GetIconURL(
-      extension,
-      extension_misc::EXTENSION_ICON_SMALLISH,
+      extension, extension_misc::EXTENSION_ICON_SMALLISH,
       ExtensionIconSet::MATCH_BIGGER,
-      false,  // Not grayscale.
-      NULL);  // Don't set bool if exists.
+      false);  // Not grayscale.
   dict->SetString("icon", icon.spec());
 
   return dict;
 }
 
 const gfx::ImageSkia& GetDefaultAppIcon() {
   return *ResourceBundle::GetSharedInstance().GetImageSkiaNamed(
       IDR_APP_DEFAULT_ICON);
 }
 
@@ skipping 21 matching lines @@
 #endif
 }
 
 bool IsExtensionSupervised(const Extension* extension, Profile* profile) {
   return WasInstalledByCustodian(extension->id(), profile) &&
          profile->IsSupervised();
 }
 
 }  // namespace util
 }  // namespace extensions