[MD settings] keyboard focus color for buttons

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 2ffb8abfd7fdca4f0c1df79b92988d0d6967dba3..3f10a13d5789a573144ad35c8e50666a54c92355 100644
--- a/chrome/browser/resources/settings/settings_shared_css.html
+++ b/chrome/browser/resources/settings/settings_shared_css.html
@@ -15,7 +15,7 @@
 
       iron-icon[icon='cr:check'],
       iron-icon[icon='settings:done'] {
-       --iron-icon-fill-color: var(--google-green-500);
+       --iron-icon-fill-color: var(--paper-green-500);
       }
 
       paper-button {
@@ -36,7 +36,14 @@
       [is='action-link']:visited,
       paper-button.primary-button,
       paper-button.tertiary-button {
-        color: var(--google-blue-700);
+        color: var(--paper-blue-700);
+      }
+
+      paper-button.primary-button,
+      paper-button.tertiary-button {
+        --paper-button-flat-keyboard-focus: {
+          background-color: rgba(51, 103, 214, .12);  /* --paper-blue-700 */
+        };
       }
 
       [is='action-link']:hover {
@@ -58,6 +65,9 @@
           text-decoration: none;
           font-weight: 500;
         };
+        --paper-button-flat-keyboard-focus: {
+          background-color: rgba(0, 0, 0, .12);
+        };
       }
 
       paper-button.tertiary-button {
@@ -77,7 +87,7 @@
       }
 
       paper-checkbox {
-        --paper-checkbox-checked-color: var(--google-blue-500);
+        --paper-checkbox-checked-color: var(--paper-blue-500);
         --paper-checkbox-label-spacing: var(--checkbox-spacing);
         --paper-checkbox-size: var(--checkbox-size);
         --paper-checkbox-unchecked-color: var(--paper-grey-600);
@@ -86,7 +96,7 @@
 
       paper-radio-button {
         @apply(--layout-center);
-        --paper-radio-button-checked-color: var(--google-blue-500);
+        --paper-radio-button-checked-color: var(--paper-blue-500);
         --paper-radio-button-label-spacing: 18px;
         --paper-radio-button-unchecked-color: var(--paper-grey-600);
         -webkit-margin-start: 2px;
@@ -109,14 +119,23 @@
       }
 
       .action-button {
-        background: var(--google-blue-500);
+        background: var(--paper-blue-500);
         color: white;
+        --paper-button-flat-keyboard-focus: {
+          background-color: rgb(58, 117, 215);  /* 88% of --paper-blue-500) */
+        };
       }
 
       .action-button[disabled] {
         opacity: .25;  /* TODO(dbeam): check this value with bettes. */
       }
 
+      .cancel-button {
+        --paper-button-flat-keyboard-focus: {
+          background-color: rgba(0, 0, 0, .12);
+        };
+      }
+
       .action-button,
       .cancel-button {
         font-weight: 500;
@@ -175,7 +194,7 @@
       /* This button has no ink ripple. */
       .list-item.list-button {
         @apply(--layout-center);
-        color: rgb(66, 133, 244);
+        color: var(--paper-blue-500);
         font-weight: 500;
       }
 
@@ -248,9 +267,9 @@
 
       /* Keep the slider color consistent throughout the range. */
       paper-slider.always-on {
-        --paper-slider-knob-start-border-color: var(--google-blue-700);
-        --paper-slider-knob-start-color: var(--google-blue-700);
-        --paper-slider-pin-start-color: var(--google-blue-700);
+        --paper-slider-knob-start-border-color: var(--paper-blue-700);
+        --paper-slider-knob-start-color: var(--paper-blue-700);
+        --paper-slider-pin-start-color: var(--paper-blue-700);
       }
 
       .favicon-image {