[MD settings] separate spacing of controlled-by icon and control-label

chrome/browser/resources/settings/settings_shared_css.html

 <link rel="import" href="chrome://resources/cr_elements/shared_style_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">
       :host-context([dir=rtl]) button[is='paper-icon-button-light'] {
         transform: scaleX(-1);  /* Flip on the X axis (aka mirror). */
       }
@@ skipping 106 matching lines @@
       }
 
       .settings-box .primary-button,
       .settings-box .secondary-button {
         -webkit-margin-end: calc(var(--settings-button-edge-spacing) * -1);
         -webkit-margin-start: calc(var(--settings-button-edge-spacing) * -1);
       }
 
       paper-checkbox {
         --paper-checkbox-checked-color: var(--google-blue-500);
-        --paper-checkbox-label-spacing: var(--settings-control-spacing);
+        --paper-checkbox-label-spacing: var(--settings-control-label-spacing);
         --paper-checkbox-size: var(--checkbox-size);
         --paper-checkbox-unchecked-color: var(--paper-grey-600);
         -webkit-margin-start: var(--checkbox-margin-start);
       }
 
       paper-input {
         /* Fix issue with focus animation making labels wiggle. */
         transform: translate3d(0, 0, 0);
       }
 
@@ skipping 218 matching lines @@
 
       :-webkit-any(.settings-box, .list-item).two-line .separator {
         height: calc(var(--settings-row-two-line-min-height) -
             2 * var(--settings-separator-gaps));
       }
 
       .settings-checkbox-spacer {
         -webkit-margin-start: calc(
             var(--checkbox-margin-start) +
             var(--checkbox-size) +
-            var(--settings-control-spacing));
+            var(--settings-control-label-spacing));
       }
 
       .favicon-image {
         background-repeat: no-repeat;
         background-size: contain;
         height: 16px;
         width: 16px;
       }
 
       .search-bubble {
@@ skipping 31 matching lines @@
         transform: rotate(-135deg);
       }
 
       .column-header {
         color: var(--paper-grey-600);
         font-weight: 500;
       }
     </style>
   </template>
 </dom-module>