Implement chrome.brailleDisplayPrivate API

chrome/chrome_browser_extensions.gypi

 # 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.
 
 {
   'targets': [
     {
       'target_name': 'browser_extensions',
       'type': 'static_library',
-      'variables': { 'enable_wexit_time_destructors': 1, },
+      'variables': {
+        'enable_wexit_time_destructors': 1,
+        'use_brlapi%': 0,
+      },
       # Since browser and browser_extensions actually depend on each other,
       # we must omit the dependency from browser_extensions to browser.
       # However, this means browser_extensions and browser should more or less
       # have the same dependencies. Once browser_extensions is untangled from
       # browser, then we can clean up these dependencies.
       'dependencies': [
         'chrome_resources.gyp:chrome_extra_resources',
         'chrome_resources.gyp:chrome_resources',
         'chrome_resources.gyp:chrome_strings',
         'chrome_resources.gyp:platform_locale_settings',
@@ skipping 106 matching lines @@
         'browser/extensions/api/bookmark_manager_private/bookmark_manager_private_api.cc',
         'browser/extensions/api/bookmark_manager_private/bookmark_manager_private_api.h',
         'browser/extensions/api/bookmark_manager_private/bookmark_manager_private_api_constants.cc',
         'browser/extensions/api/bookmark_manager_private/bookmark_manager_private_api_constants.h',
         'browser/extensions/api/bookmarks/bookmark_api_constants.cc',
         'browser/extensions/api/bookmarks/bookmark_api_constants.h',
         'browser/extensions/api/bookmarks/bookmark_api_helpers.cc',
         'browser/extensions/api/bookmarks/bookmark_api_helpers.h',
         'browser/extensions/api/bookmarks/bookmarks_api.cc',
         'browser/extensions/api/bookmarks/bookmarks_api.h',
+        'browser/extensions/api/braille_display_private/braille_controller_brlapi.cc',
+        'browser/extensions/api/braille_display_private/braille_controller_stub.cc',
+        'browser/extensions/api/braille_display_private/braille_controller.h',
         'browser/extensions/api/braille_display_private/braille_display_private_api.h',
         'browser/extensions/api/braille_display_private/braille_display_private_api.cc',
         'browser/extensions/api/browsing_data/browsing_data_api.cc',
         'browser/extensions/api/browsing_data/browsing_data_api.h',
         'browser/extensions/api/cloud_print_private/cloud_print_private_api.cc',
         'browser/extensions/api/cloud_print_private/cloud_print_private_api.h',
         'browser/extensions/api/command_line_private/command_line_private_api.cc',
         'browser/extensions/api/command_line_private/command_line_private_api.h',
         'browser/extensions/api/commands/command_service.cc',
         'browser/extensions/api/commands/command_service.h',
@@ skipping 873 matching lines @@
             'browser/extensions/webstore_startup_installer.cc',
             'browser/extensions/window_controller.cc',
             'browser/extensions/window_controller_list.cc',
           ],
         }],
         ['chrome_multiple_dll!=1', {
           'dependencies': [
             '../webkit/support/webkit_support.gyp:glue',
           ],
         }],
+        ['use_brlapi==1', {
+          'sources!': [
+            'browser/extensions/api/braille_display_private/braille_controller_stub.cc',
+          ],
+          'dependencies' : [
+            '../build/linux/system.gyp:libbrlapi',
+          ],
+        }, {  # use_brlapi==0
+          'sources!': [
+            'browser/extensions/api/braille_display_private/braille_controller_brlapi.cc',
+          ],
+        }],
       ],
     },
   ],
   'conditions': [
     ['chromeos==1', {
       'targets': [
         {
           # Protobuf compiler / generator for contacts-related protocol buffers.
           'target_name': 'contacts_proto',
           'type': 'static_library',
           'sources': [ 'browser/chromeos/contacts/contact.proto' ],
           'variables': {
             'proto_in_dir': 'browser/chromeos/contacts',
             'proto_out_dir': 'chrome/browser/chromeos/contacts',
           },
           'includes': [ '../build/protoc.gypi' ]
         },
       ],
     },],  # 'chromeos=1'
   ],  # 'conditions'
 }