Smooth scrolling build cleanup.

chrome/chrome_browser.gypi

 # Copyright (c) 2011 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',
       'type': 'static_library',
       'dependencies': [
@@ skipping 5020 matching lines @@
             ['exclude', '^browser/ui/gtk/dialogs_kde.cc'],
             ['exclude', '^browser/ui/views/select_file_dialog.cc'],
             ['include', '^browser/ui/views/file_manager_dialog.cc'],
             ['include', '^browser/ui/views/file_manager_dialog.h'],
           ]}, {
           'sources/': [
             ['exclude', '^browser/ui/views/file_manager_dialog.cc'],
             ['exclude', '^browser/ui/views/file_manager_dialog.h'],
           ]}
         ],
-        ['enable_smooth_scrolling==1', {
-          'defines': [
-            'ENABLE_SMOOTH_SCROLLING',
-          ],
-        }],
       ],
     },
     {
       # Protobuf compiler / generate rule for feedback
       'target_name': 'userfeedback_proto',
       'type': 'static_library',
       'sources': [
         'browser/userfeedback/proto/annotations.proto',
         'browser/userfeedback/proto/chrome.proto',
         'browser/userfeedback/proto/common.proto',
@@ skipping 27 matching lines @@
       'type': 'static_library',
       'sources': [ 'browser/history/in_memory_url_index_cache.proto' ],
       'variables': {
         'proto_in_dir': 'browser/history',
         'proto_out_dir': 'chrome/browser/history',
       },
       'includes': [ '../build/protoc.gypi' ]
     },
   ],
 }