MD Settings: convert paper-icon-button to paper-icon-button-light.

chrome/browser/resources/settings/people_page/change_picture.html

Index: chrome/browser/resources/settings/people_page/change_picture.html
diff --git a/chrome/browser/resources/settings/people_page/change_picture.html b/chrome/browser/resources/settings/people_page/change_picture.html
index b4c4823163b11a42d97122847ef4fba157130c02..ef91b68bf75d7c5407c8d5999ab47fe73b4440af 100644
--- a/chrome/browser/resources/settings/people_page/change_picture.html
+++ b/chrome/browser/resources/settings/people_page/change_picture.html
@@ -5,7 +5,7 @@
 <link rel="import" href="chrome://resources/html/web_ui_listener_behavior.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/iron-a11y-keys/iron-a11y-keys.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/iron-selector/iron-selector.html">
-<link rel="import" href="chrome://resources/polymer/v1_0/paper-icon-button/paper-icon-button.html">
+<link rel="import" href="chrome://resources/polymer/v1_0/paper-icon-button/paper-icon-button-light.html">
 <link rel="import" href="../i18n_setup.html">
 <link rel="import" href="../icons.html">
 <link rel="import" href="camera.html">
@@ -135,10 +135,10 @@
             hidden="[[isPreviewImageHidden_(selectedItem_)]]">
         <div id="discardControlBar"
             hidden="[[isDiscardHidden_(selectedItem_)]]">
-          <paper-icon-button id="discardOldImage" tabindex="0"
-              icon="cr:delete" title="$i18n{discardPhoto}"
+          <button is="paper-icon-button-light" id="discardOldImage"
+              tabindex="0" class="icon-delete" title="$i18n{discardPhoto}"

[Dan Beam, 2017/05/23 16:36:22]

do you still need a tabindex=0 here?

[scottchen, 2017/05/27 00:18:03]

nope

               on-tap="onTapDiscardOldImage_">
-          </paper-icon-button>
+          </button>
         </div>
         <settings-camera id="camera"
             camera-active="[[isCameraActive_(cameraPresent_, selectedItem_)]]"