MD Settings: Add Learn More button to the Passwords subpage

chrome/browser/resources/settings/icons.html

Index: chrome/browser/resources/settings/icons.html
diff --git a/chrome/browser/resources/settings/icons.html b/chrome/browser/resources/settings/icons.html
index de9b38bc407a5be6a0d449316586e56777d66583..1795b00d2b2f9b72a1a16b9c6faf6953f12a6808 100644
--- a/chrome/browser/resources/settings/icons.html
+++ b/chrome/browser/resources/settings/icons.html
@@ -60,6 +60,7 @@
       <g id="gamepad"><path d="M15 7.5V2H9v5.5l3 3 3-3zM7.5 9H2v6h5.5l3-3-3-3zM9 16.5V22h6v-5.5l-3-3-3 3zM16.5 9l-3 3 3 3H22V9h-5.5z"></path></g>
       <g id="headset"><path d="M12 1c-4.97 0-9 4.03-9 9v7c0 1.66 1.34 3 3 3h3v-8H5v-2c0-3.87 3.13-7 7-7s7 3.13 7 7v2h-4v8h3c1.66 0 3-1.34 3-3v-7c0-4.97-4.03-9-9-9z"></path></g>
 </if>
+      <g id="help-outline"><path d="M11 18h2v-2h-2v2zm1-16C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2zm0 18c-4.41 0-8-3.59-8-8s3.59-8 8-8 8 3.59 8 8-3.59 8-8 8zm0-14c-2.21 0-4 1.79-4 4h2c0-1.1.9-2 2-2s2 .9 2 2c0 2-3 1.75-3 5h2c0-2.25 3-2.5 3-5 0-2.21-1.79-4-4-4z"></path></g>
       <g id="info"><path d="M12 2C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2zm1 15h-2v-6h2v6zm0-8h-2V7h2v2z"></path></g>
       <g id="input"><path d="M21 3.01H3c-1.1 0-2 .9-2 2V9h2V4.99h18v14.03H3V15H1v4.01c0 1.1.9 1.98 2 1.98h18c1.1 0 2-.88 2-1.98v-14c0-1.11-.9-2-2-2zM11 16l4-4-4-4v3H1v2h10v3z"></path></g>
 <if expr="chromeos">