Working proof of concept of select to speak

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

Index: chrome/browser/resources/chromeos/chromevox/chromevox.gyp
diff --git a/chrome/browser/resources/chromeos/chromevox/chromevox.gyp b/chrome/browser/resources/chromeos/chromevox/chromevox.gyp
index 9cdc4f5f9e3a33ab2ff4e47f6b0e1e72c6feccff..4a37649282787187d9173f4b3817f8141d4f19f3 100644
--- a/chrome/browser/resources/chromeos/chromevox/chromevox.gyp
+++ b/chrome/browser/resources/chromeos/chromevox/chromevox.gyp
@@ -49,6 +49,7 @@
                 'chromevox_options_script',
                 'chromevox_background_script',
                 'chromevox_panel_script',
+                's2s_background_script',
               ],
             }, {  # chromevox_compress_js==0
               'dependencies': [
@@ -212,6 +213,17 @@
               'sources': [ '<(chromevox_panel_script_loader_file)' ],
               'includes': [ 'compress_js.gypi', ],
             },
+            {
+              'target_name': 's2s_background_script',
+              'type': 'none',
+              'variables': {
+                'output_file': '<(chromevox_dest_dir)/s2sBackgroundScript.js',
+              },
+              'sources': [
+                's2s/background/loader.js',
+              ],
+              'includes': [ 'compress_js.gypi', ],
+            },
           ],
         }, {  # chromevox_compress_js==0
           'targets': [