Make the repeat button accessible by keyboard.

ui/file_manager/integration_tests/file_manager/open_audio_files.js

Index: ui/file_manager/integration_tests/file_manager/open_audio_files.js
diff --git a/ui/file_manager/integration_tests/file_manager/open_audio_files.js b/ui/file_manager/integration_tests/file_manager/open_audio_files.js
index bd55c47df4b8b9f99b01075a22f373e15516e57c..ecdb29ba567e5c44619a79e98313efa6b56febb9 100644
--- a/ui/file_manager/integration_tests/file_manager/open_audio_files.js
+++ b/ui/file_manager/integration_tests/file_manager/open_audio_files.js
@@ -268,7 +268,7 @@ function audioRepeatAllModeSingleFile(path) {
       audioPlayerApp.callRemoteTestUtil(
           'fakeMouseClick',
           audioAppId,
-          ['audio-player /deep/ repeat-button .no-repeat'],
+          ['audio-player /deep/ repeat-button [repeat-mode="no-repeat"]'],
           this.next);
     },
     function(result) {
@@ -390,14 +390,14 @@ function audioRepeatOneModeSingleFile(path) {
       audioPlayerApp.callRemoteTestUtil(
           'fakeMouseClick',
           audioAppId,
-          ['audio-player /deep/ repeat-button .no-repeat'],
+          ['audio-player /deep/ repeat-button [repeat-mode="no-repeat"]'],
           this.next);
     },
     function() {
       audioPlayerApp.callRemoteTestUtil(
           'fakeMouseClick',
           audioAppId,
-          ['audio-player /deep/ repeat-button .repeat-all'],
+          ['audio-player /deep/ repeat-button [repeat-mode=repeat-all]'],
           this.next);
     },
     function(result) {
@@ -479,7 +479,7 @@ function audioRepeatAllModeMultipleFile(path) {
       audioPlayerApp.callRemoteTestUtil(
           'fakeMouseClick',
           audioAppId,
-          ['audio-player /deep/ repeat-button .no-repeat'],
+          ['audio-player /deep/ repeat-button [repeat-mode="no-repeat"]'],
           this.next);
     },
     function(result) {
@@ -633,14 +633,14 @@ function audioRepeatOneModeMultipleFile(path) {
       audioPlayerApp.callRemoteTestUtil(
           'fakeMouseClick',
           audioAppId,
-          ['audio-player /deep/ repeat-button .no-repeat'],
+          ['audio-player /deep/ repeat-button [repeat-mode="no-repeat"]'],
           this.next);
     },
     function() {
       audioPlayerApp.callRemoteTestUtil(
           'fakeMouseClick',
           audioAppId,
-          ['audio-player /deep/ repeat-button .repeat-all'],
+          ['audio-player /deep/ repeat-button [repeat-mode="repeat-all"]'],
           this.next);
     },
     function(result) {