Add the scheme chrome-distiller:// and hook up data source.

components/dom_distiller.gypi

 # 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.
 
 {
   'conditions': [
     ['android_webview_build == 0', {
       'targets': [
         {
           'target_name': 'dom_distiller_webui',
           'type': 'static_library',
           'dependencies': [
             'component_strings.gyp:component_strings',
             'dom_distiller_core',
             'dom_distiller_resources',
             '../base/base.gyp:base',
             '../content/content.gyp:content_browser',
             '../skia/skia.gyp:skia',
             '../sync/sync.gyp:sync',
           ],
           'include_dirs': [
             '..',
           ],
           'sources': [
             'dom_distiller/webui/dom_distiller_handler.cc',
             'dom_distiller/webui/dom_distiller_handler.h',
             'dom_distiller/webui/dom_distiller_ui.cc',
             'dom_distiller/webui/dom_distiller_ui.h',
+            'dom_distiller/webui/dom_distiller_viewer_handler.cc',
+            'dom_distiller/webui/dom_distiller_viewer_handler.h',
+            'dom_distiller/webui/dom_distiller_viewer_ui.cc',
+            'dom_distiller/webui/dom_distiller_viewer_ui.h',
           ],
         },
         {
           'target_name': 'dom_distiller_content',
           'type': 'static_library',
           'dependencies': [
             'dom_distiller_core',
             '../skia/skia.gyp:skia',
             '../sync/sync.gyp:sync',
           ],
@@ skipping 71 matching lines @@
           'variables': {
             'proto_in_dir': 'dom_distiller/core/proto',
             'proto_out_dir': 'components/dom_distiller/core/proto',
           },
           'includes': [ '../build/protoc.gypi' ]
         },
       ],
     }],
   ],
 }