Fix accessibility issues in AudioPlayer and VideoPlayer.

ui/file_manager/audio_player/elements/control_panel.html

Index: ui/file_manager/audio_player/elements/control_panel.html
diff --git a/ui/file_manager/audio_player/elements/control_panel.html b/ui/file_manager/audio_player/elements/control_panel.html
index e8fdb28342c8f1a3ad6caef8a1b3b31031883738..ee8b51885dc244bf4fa2f9727a0a4ff5edb6fa96 100644
--- a/ui/file_manager/audio_player/elements/control_panel.html
+++ b/ui/file_manager/audio_player/elements/control_panel.html
@@ -7,8 +7,7 @@
 <link rel="import" href="chrome://resources/polymer/v1_0/polymer/polymer.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/font-roboto/roboto.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-slider/paper-slider.html">
-<link rel="import" href="chrome-extension://hhaomjibdihmijegdhdafkllkbggdgoj/foreground/elements/files_ripple.html">
-<link rel="import" href="chrome-extension://hhaomjibdihmijegdhdafkllkbggdgoj/foreground/elements/files_toggle_ripple.html">
+<link rel="import" href="chrome-extension://hhaomjibdihmijegdhdafkllkbggdgoj/foreground/elements/files_icon_button.html">
 
 <dom-module id="control-panel">
   <link rel="import" type="css" href="control_panel.css">
@@ -19,77 +18,54 @@
       </div>
       <div class="control-row audio-controls">
         <!-- Shuffle toggle button in the bottom line. -->
-        <button class="shuffle-mode media-button toggle" state="default">
-          <label>
-            <input id="shuffleCheckbox"
-                   type="checkbox"
-                   checked="{{shuffle::change}}">
-            <span class="icon"></span>
-          </label>
-          <files-toggle-ripple activated="[[shuffle]]"></files-toggle-ripple>
-        </button>
+        <files-icon-button toggles
+            id="shuffle"
+            class="shuffle-mode media-button toggle"
+            active="{{shuffle}}">
+        </files-icon-button>
 
         <!-- Repeat toggle button in the bottom line. -->
-        <button class="repeat media-button toggle" state="default">
-          <label>
-            <input id="repeatCheckbox"
-                   type="checkbox"
-                   checked="{{repeat::change}}">
-            <span class="icon"></span>
-          </label>
-          <files-toggle-ripple activated="[[repeat]]"></files-toggle-ripple>
-        </button>
+        <files-icon-button toggles
+            id="repeat"
+            class="repeat media-button toggle"
+            active="{{repeat}}">
+        </files-icon-button>
 
         <!-- Prev button in the bottom line. -->
-        <button class="previous media-button"
-               state="default"
-               on-click="previousClick">
-          <div class="normal default"></div>
-          <div class="disabled"></div>
-          <files-ripple></files-ripple>
-        </button>
+        <files-icon-button
+            id="previous"
+            class="previous media-button"
+            on-click="previousClick">
+        </files-icon-button>
 
         <!-- Play button in the bottom line. -->
-        <button class="play media-button"
-                state$="[[computePlayState_(playing)]]"
-                on-click="playClick">
-          <div class="normal playing"></div>
-          <div class="normal ended"></div>
-          <div class="disabled"></div>
-          <files-ripple></files-ripple>
-        </button>
+        <files-icon-button
+            id="play"
+            class="play media-button"
+            on-click="playClick">
+        </files-icon-button>
 
         <!-- Next button in the bottom line. -->
-        <button class="next media-button"
-                state="default"
-                on-click="nextClick">
-          <div class="normal default"></div>
-          <div class="disabled"></div>
-          <files-ripple></files-ripple>
-        </button>
+        <files-icon-button
+            id="next"
+            class="next media-button"
+            on-click="nextClick">
+        </files-icon-button>
 
         <!-- Volume button in the bottom line. -->
-        <button id="volumeButton"
-                class="volume media-button toggle"
-                state="default"
-                anchor-point="bottom center">
-          <label>
-            <input type="checkbox" checked="{{volumeSliderShown::change}}">
-            <span class="icon"></span>
-          </label>
-          <files-toggle-ripple activated="[[volumeSliderShown]]"></files-toggle-ripple>
-        </button>
+        <files-icon-button toggles
+            id="volume"
+            class="volume media-button toggle"
+            anchor-point="bottom center"
+            active="{{volumeSliderShown}}">
+        </files-icon-button>
 
         <!-- Playlist button in the bottom line. -->
-        <button id="playlistButton"
-                class="playlist media-button toggle"
-                state="default">
-          <label>
-            <input type="checkbox" checked="{{expanded::change}}">
-            <span class="icon"></span>
-          </label>
-          <files-toggle-ripple activated="[[expanded]]"></files-toggle-ripple>
-        </button>
+        <files-icon-button toggles
+            id="playList"
+            class="playlist media-button toggle"
+            active="{{expanded}}">
+        </files-toggle-ripple>
       </div>
       <div class="control-row time-controls">
         <div class="time-container">