Use high resolution icons where possible for streamlined hosted app icons.

chrome/chrome_browser_ui.gypi

 # Copyright 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.
 
 {
   'targets': [
     {
       'target_name': 'browser_ui',
       'type': 'static_library',
       'variables': { 'enable_wexit_time_destructors': 1, },
@@ skipping 2700 matching lines @@
             '../ui/events/events.gyp:events',
           ],
           'sources!': [
             'browser/ui/profile_reset_bubble_stub.cc',
           ],
         }, {  # toolkit_views == 0
           'sources!': [
             'browser/ui/tabs/tab_strip_layout_type.h',
             'browser/ui/tabs/tab_strip_layout_type_prefs.cc',
             'browser/ui/tabs/tab_strip_layout_type_prefs.h',
-          ],        
+          ],
         }],
         ['OS=="linux"', {
           'dependencies': [
             '../build/linux/system.gyp:udev',
           ],
           'sources/': [
             ['exclude', '^browser/ui/webui/certificate_viewer_webui.cc'],
             ['exclude', '^browser/ui/webui/certificate_viewer_webui.h'],
           ],
         }],
@@ skipping 587 matching lines @@
             'browser/ui/webui/local_discovery/local_discovery_ui.cc',
             'browser/ui/webui/local_discovery/local_discovery_ui.h',
             'browser/ui/webui/local_discovery/local_discovery_ui_handler.cc',
             'browser/ui/webui/local_discovery/local_discovery_ui_handler.h',
           ],
         }],
       ],
     },
   ],
 }