Add ChromeVox panel and implement caption display functionality.

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 94b33f14d26725ddbbc10a851d303fa8f17bbc91..06f739399c34103182fed72930f9bc338816a724 100644
--- a/chrome/browser/resources/chromeos/chromevox/chromevox.gyp
+++ b/chrome/browser/resources/chromeos/chromevox/chromevox.gyp
@@ -48,6 +48,7 @@
                 'chromevox1_kbexplorer_script',
                 'chromevox1_options_script',
                 'chromevox2_background_script',
+                'chromevox2_panel_script',
               ],
             }, {  # chromevox_compress_js==0
               'dependencies': [
@@ -72,6 +73,7 @@
               'destination': '<(chromevox_dest_dir)/cvox2/background',
               'files': [
                 'cvox2/background/background.html',
+                'cvox2/background/panel.html',
               ],
             },
           ],
@@ -138,6 +140,7 @@
             '<(chromevox1_kbexplorer_loader_file)',
             '<(chromevox1_options_script_loader_file)',
             '<(chromevox2_background_script_loader_file)',
+            '<(chromevox2_panel_script_loader_file)',
           ],
           'includes': ['generate_deps.gypi'],
         },
@@ -200,6 +203,15 @@
               ],
               'includes': [ 'compress_js.gypi', ],
             },
+            {
+              'target_name': 'chromevox2_panel_script',
+              'type': 'none',
+              'variables': {
+                'output_file': '<(chromevox_dest_dir)/chromeVoxPanelScript.js',
+              },
+              'sources': [ '<(chromevox2_panel_script_loader_file)' ],
+              'includes': [ 'compress_js.gypi', ],
+            },
           ],
         }, {  # chromevox_compress_js==0
           'targets': [
@@ -214,6 +226,7 @@
                 '<(chromevox1_kbexplorer_loader_file)',
                 '<(chromevox1_options_script_loader_file)',
                 '<(chromevox2_background_script_loader_file)',
+                '<(chromevox2_panel_script_loader_file)',
               ],
               'includes': [ 'copy_js.gypi', ],
             },