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

chrome/browser/resources/settings/settings_shared_css.html

Index: chrome/browser/resources/settings/settings_shared_css.html
diff --git a/chrome/browser/resources/settings/settings_shared_css.html b/chrome/browser/resources/settings/settings_shared_css.html
index 4ed24f9629e3dbc86f3e7b5a95424e35e6b72446..39f6b9ca5631a6ab5d17cac79c3378d3c04cbd21 100644
--- a/chrome/browser/resources/settings/settings_shared_css.html
+++ b/chrome/browser/resources/settings/settings_shared_css.html
@@ -1,10 +1,11 @@
 <link rel="import" href="chrome://resources/cr_elements/shared_style_css.html">
+<link rel="import" href="settings_icons_css.html">
 <link rel="import" href="settings_vars_css.html">
 
 <!-- Common styles for Material Design settings. -->
 <dom-module id="settings-shared">
   <template>
-    <style include="cr-shared-style">
+    <style include="settings-icons cr-shared-style">
       /* Use <h2> as the "sub-header" mentioned in the UX design docs. */
       h2 {
         align-items: center;
@@ -335,6 +336,17 @@
         outline: none;
       }
 
+      /* Prevent icon-button's ripples from fighting with potential scrollbars.
+       * Also apply to all iron-lists to align the buttons across them all.*/
+      [scrollable],
+      .scroll-container,
+      iron-list {
+        --cr-paper-icon-button-margin: {
+          -webkit-margin-start: 0;
+          -webkit-margin-end: 0;
+        };
+      }

[dschuyler, 2017/06/06 18:58:39]

fyi, I'm working on a CL at https://codereview.chromium.org/2918953004/
We may need to coordinate :)

[scottchen, 2017/06/06 22:33:12]

Acknowledged.

+
       /* Helper for a list frame to automatically avoid the separator line. */
       .vertical-list > *:not(:first-of-type) {
         border-top: var(--settings-separator-line);