[MD WebUI] Fix sidebar selected color.

BUG=670836
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:closure_compilation

Review-Url: https://codereview.chromium.org/2552163003
Cr-Commit-Position: refs/heads/master@{#438094}

chrome/browser/resources/md_extensions/sidebar.html

@@ -5,6 +5,7 @@
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-checkbox/paper-checkbox.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-item/paper-item.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-menu/paper-menu.html">
+<link rel="import" href="chrome://resources/polymer/v1_0/paper-styles/color.html">
 <link rel="import" href="chrome://extensions/icons.html">
 
 <dom-module id="extensions-sidebar">
@@ -24,7 +25,7 @@
         --paper-menu-background-color: transparent;
         --paper-menu-selected-item: {
           background-color: transparent;
-          color: rgb(66, 133, 244);
+          color: var(--google-blue-700);
           font-weight: normal;
         }
 
@@ -49,8 +50,8 @@
       }
 
       #developer-mode-checkbox {
-        --paper-checkbox-checked-color: rgb(66, 133, 244);
-        --primary-text-color: #5A5A5A;
+        --paper-checkbox-checked-color: var(--google-blue-700);
+        --primary-text-color: #5a5a5a;
       }
 
       #developer-mode {

chrome/browser/resources/settings/settings_menu/settings_menu.html

@@ -13,7 +13,7 @@
   <template>
     <style include="settings-shared">
       #about-menu[about-selected] {
-        color: var(--google-blue-500);
+        color: var(--google-blue-700);
       }
 
       iron-icon {
@@ -22,7 +22,7 @@
       }
 
       .iron-selected:not(.menu-trigger) > iron-icon {
-        fill: var(--google-blue-500);
+        fill: var(--google-blue-700);
       }
 
       .menu-trigger span {
@@ -65,13 +65,13 @@
       }
 
       paper-ripple {
-        color: var(--google-blue-500);
+        color: var(--google-blue-700);
         opacity: .5;
       }
 
       .page-menu paper-menu {
         --paper-menu-selected-item: {
-          color: var(--google-blue-500);
+          color: var(--google-blue-700);
           font-weight: 500;
         };
       }