Added the reply/loop icon to the video player.

chrome/browser/resources/file_manager/css/media_controls.css

Index: chrome/browser/resources/file_manager/css/media_controls.css
diff --git a/chrome/browser/resources/file_manager/css/media_controls.css b/chrome/browser/resources/file_manager/css/media_controls.css
index 181e80d1b38f631fdf448cd7fa6e8e8214c7e5ce..86be8744b8b2afa3477da21f710d71a498607833 100644
--- a/chrome/browser/resources/file_manager/css/media_controls.css
+++ b/chrome/browser/resources/file_manager/css/media_controls.css
@@ -17,12 +17,18 @@
   width: 100%;
 }
 
-.media-button[state='0']:not(.disabled):not(:hover):not(:active) > .state0.normal,
+.media-button[state='0']:not(.disabled):not(:hover):not(:active) >
+    .state0.normal,
 .media-button[state='0']:not(.disabled):hover > .state0.hover,
 .media-button[state='0']:not(.disabled):active > .state0.active,
-.media-button[state='1']:not(.disabled):not(:hover):not(:active) > .state1.normal,
+.media-button[state='1']:not(.disabled):not(:hover):not(:active) >
+    .state1.normal,
 .media-button[state='1']:not(.disabled):hover > .state1.hover,
 .media-button[state='1']:not(.disabled):active > .state1.active,
+.media-button[state='2']:not(.disabled):not(:hover):not(:active) >
+    .state2.normal,
+.media-button[state='2']:not(.disabled):hover > .state2.hover,
+.media-button[state='2']:not(.disabled):active > .state2.active,
 .media-button.disabled > .disabled {
   opacity: 1;
 }
@@ -220,6 +226,24 @@
     url('../images/media/2x/media_pause_down.png') 2x);
 }
 
+.media-button.play > .state2.normal {
+  background-image: -webkit-image-set(
+    url('../images/media/media_loop.png') 1x,
+    url('../images/media/2x/media_loop.png') 2x);
+}
+
+.media-button.play > .state2.hover {
+  background-image: -webkit-image-set(
+    url('../images/media/media_loop_hover.png') 1x,
+    url('../images/media/2x/media_loop_hover.png') 2x);
+}
+
+.media-button.play > .state2.active {
+  background-image: -webkit-image-set(
+    url('../images/media/media_loop_down.png') 1x,
+    url('../images/media/2x/media_loop_down.png') 2x);
+}
+
 .media-button.play > .disabled {
   background-image: -webkit-image-set(
     url('../images/media/media_play_disabled.png') 1x,