Update signout icon and more_settings icon on the md shelf

chrome/browser/resources/chromeos/login/images/2x/more-settings.svg

Index: chrome/browser/resources/chromeos/login/images/2x/more-settings.svg
diff --git a/chrome/browser/resources/chromeos/login/images/2x/more-settings.svg b/chrome/browser/resources/chromeos/login/images/2x/more-settings.svg
new file mode 100644
index 0000000000000000000000000000000000000000..30182d001a79ddd339985ba79aa9f7f15f7be705
--- /dev/null
+++ b/chrome/browser/resources/chromeos/login/images/2x/more-settings.svg
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<svg width="40px" height="40px" viewBox="0 0 40 40" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
+    <!-- Generator: Sketch 41.1 (35376) - http://www.bohemiancoding.com/sketch -->
+    <title>more-2x</title>
+    <desc>Created with Sketch.</desc>
+    <defs></defs>
+    <g id="Final" stroke="none" stroke-width="1" fill="none" fill-rule="evenodd">
+        <g id="Start-screen-icons" transform="translate(-122.000000, -192.000000)">
+            <g id="ic_more_vert_black_24dp" transform="translate(122.000000, 192.000000)">
+                <polygon id="Shape" points="0 0 40 0 40 40 0 40"></polygon>
+                <path d="M20,14 C21.6568542,14 23,12.6568542 23,11 C23,9.34314575 21.6568542,8 20,8 C18.3431458,8 17,9.34314575 17,11 C17,12.6568542 18.3431458,14 20,14 Z M20,23 C21.6568542,23 23,21.6568542 23,20 C23,18.3431458 21.6568542,17 20,17 C18.3431458,17 17,18.3431458 17,20 C17,21.6568542 18.3431458,23 20,23 Z M20,32 C21.6568542,32 23,30.6568542 23,29 C23,27.3431458 21.6568542,26 20,26 C18.3431458,26 17,27.3431458 17,29 C17,30.6568542 18.3431458,32 20,32 Z" id="Combined-Shape" fill="#FFFFFF"></path>
+            </g>
+        </g>
+    </g>
+</svg>