Implement a JavaScript API for document scanning

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.
 
 {
   'variables': {
     'chrome_browser_extensions_chromeos_sources': [
       'browser/extensions/api/diagnostics/diagnostics_api.cc',
       'browser/extensions/api/diagnostics/diagnostics_api.h',
       'browser/extensions/api/diagnostics/diagnostics_api_chromeos.cc',
@@ skipping 187 matching lines @@
       'browser/extensions/api/dial/dial_api.cc',
       'browser/extensions/api/dial/dial_api.h',
       'browser/extensions/api/dial/dial_api_factory.cc',
       'browser/extensions/api/dial/dial_api_factory.h',
       'browser/extensions/api/dial/dial_device_data.cc',
       'browser/extensions/api/dial/dial_device_data.h',
       'browser/extensions/api/dial/dial_registry.cc',
       'browser/extensions/api/dial/dial_registry.h',
       'browser/extensions/api/dial/dial_service.cc',
       'browser/extensions/api/dial/dial_service.h',
+      'browser/extensions/api/document_scan/document_scan_api.cc',
+      'browser/extensions/api/document_scan/document_scan_api.h',

[mef, 2014/10/13 15:59:54]

Should this be conditional to chromeos?

[Paul Stewart, 2014/10/14 19:28:31]

I don't think so (I don't expect this interface to be ChromeOS only,
forever, and in either case it would make more sense to gracefully
return that no scanners exist, rather than for an app with this API
permission to fail to find the API at all).  I will, however move
the impl over to a conditional compile when they are split.

       'browser/extensions/api/downloads/downloads_api.cc',
       'browser/extensions/api/downloads/downloads_api.h',
       'browser/extensions/api/downloads_internal/downloads_internal_api.cc',
       'browser/extensions/api/downloads_internal/downloads_internal_api.h',
       'browser/extensions/api/easy_unlock_private/easy_unlock_private_api.cc',
       'browser/extensions/api/easy_unlock_private/easy_unlock_private_api.h',
       'browser/extensions/api/easy_unlock_private/easy_unlock_private_crypto_delegate.h',
       'browser/extensions/api/easy_unlock_private/easy_unlock_private_crypto_delegate_chromeos.cc',
       'browser/extensions/api/experience_sampling_private/experience_sampling.cc',
       'browser/extensions/api/experience_sampling_private/experience_sampling.h',
@@ skipping 896 matching lines @@
           ],
         }, {  # use_brlapi==0
           'sources': [
             'browser/extensions/api/braille_display_private/braille_controller_stub.cc',
           ],
         }],
       ],
     },
   ],
 }