Remove unused Chromevox classic background script.

chrome/browser/resources/chromeos/chromevox/chromevox.gyp

 # Copyright 2014 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': [
     ['chromeos==1', {
       'variables': {
         # Whether to compress the 4 main ChromeVox scripts.
         'chromevox_compress_js%': '1',
@@ skipping 26 matching lines @@
             '../braille_ime/braille_ime.gyp:braille_ime_manifest',
           ],
           'conditions': [
             ['disable_nacl==0 and disable_nacl_untrusted==0', {
               'dependencies': [
                 '<(DEPTH)/third_party/liblouis/liblouis_nacl.gyp:liblouis_nacl_wrapper_nacl',
               ],
             }],
             ['chromevox_compress_js==1', {
               'dependencies': [
-                'chromevox1_background_script',
                 'chromevox1_content_script',
                 'chromevox1_kbexplorer_script',
                 'chromevox1_options_script',
                 'chromevox2_background_script',
               ],
             }, {  # chromevox_compress_js==0
               'dependencies': [
                 'chromevox_copied_scripts',
                 'chromevox_deps',
               ],
             }],
           ],
         },
         {
           'target_name': 'chromevox_static_files',
           'type': 'none',
           'copies': [
             {
               'destination': '<(chromevox_dest_dir)/chromevox/background',
               'files': [
-                'chromevox/background/background.html',
                 'chromevox/background/kbexplorer.html',
                 'chromevox/background/options.html',
               ],
             },
             {
               'destination': '<(chromevox_dest_dir)/cvox2/background',
               'files': [
                 'cvox2/background/background.html',
               ],
             },
@@ skipping 50 matching lines @@
             },
           ],
         },
         {
           'target_name': 'chromevox_deps',
           'type': 'none',
           'variables': {
             'deps_js_output_file': '<(chromevox_dest_dir)/deps.js',
           },
           'sources': [
-            '<(chromevox1_background_script_loader_file)',
             '<(chromevox1_content_script_loader_file)',
             '<(chromevox1_kbexplorer_loader_file)',
             '<(chromevox1_options_script_loader_file)',
             '<(chromevox2_background_script_loader_file)',
           ],
           'includes': ['generate_deps.gypi'],
         },
         {
           'target_name': 'chromevox_manifest',
           'type': 'none',
@@ skipping 18 matching lines @@
             {
               'target_name': 'chromevox1_content_script',
               'type': 'none',
               'variables': {
                 'output_file': '<(chromevox_dest_dir)/chromeVoxChromePageScript.js',
               },
               'sources': [ '<(chromevox1_content_script_loader_file)' ],
               'includes': [ 'compress_js.gypi', ],
             },
             {
-              'target_name': 'chromevox1_background_script',
-              'type': 'none',
-              'variables': {
-                'output_file': '<(chromevox_dest_dir)/chromeVoxChromeBackgroundScript.js',
-              },
-              'sources': [ '<(chromevox1_background_script_loader_file)' ],
-              'includes': [ 'compress_js.gypi', ],
-            },
-            {
               'target_name': 'chromevox1_options_script',
               'type': 'none',
               'variables': {
                 'output_file': '<(chromevox_dest_dir)/chromeVoxChromeOptionsScript.js',
               },
               'sources': [ '<(chromevox1_options_script_loader_file)' ],
               'includes': [ 'compress_js.gypi', ],
             },
             {
               'target_name': 'chromevox1_kbexplorer_script',
               'type': 'none',
               'variables': {
                 'output_file': '<(chromevox_dest_dir)/chromeVoxKbExplorerScript.js',
               },
               'sources': [ '<(chromevox1_kbexplorer_loader_file)' ],
               'includes': [ 'compress_js.gypi', ],
             },
             {
               'target_name': 'chromevox2_background_script',
               'type': 'none',
               'variables': {
                 'output_file': '<(chromevox_dest_dir)/chromeVox2ChromeBackgroundScript.js',
               },
               'sources': [
-                '<(chromevox1_background_script_loader_file)',
                 '<(chromevox2_background_script_loader_file)',
               ],
               'includes': [ 'compress_js.gypi', ],
             },
           ],
         }, {  # chromevox_compress_js==0
           'targets': [
             {
               'target_name': 'chromevox_copied_scripts',
               'type': 'none',
               'variables': {
                 'dest_dir': '<(chromevox_dest_dir)',
               },
               'sources': [
-                '<(chromevox1_background_script_loader_file)',
                 '<(chromevox1_content_script_loader_file)',
                 '<(chromevox1_kbexplorer_loader_file)',
                 '<(chromevox1_options_script_loader_file)',
                 '<(chromevox2_background_script_loader_file)',
               ],
               'includes': [ 'copy_js.gypi', ],
             },
           ],
         }],
       ],
     }],
   ],
 }