Reskins the Compact and System VK to look closer to the IME VK.

ui/keyboard/resources/images/hide-keyboard.svg

Index: ui/keyboard/resources/images/hide-keyboard.svg
diff --git a/ui/keyboard/resources/images/hide-keyboard.svg b/ui/keyboard/resources/images/hide-keyboard.svg
index 3c2d0f3dbf3ef7e5483a135fa5883701005b0928..55d59ebe74640e0f3f0b67644b8ab1715991a9fe 100644
--- a/ui/keyboard/resources/images/hide-keyboard.svg
+++ b/ui/keyboard/resources/images/hide-keyboard.svg
@@ -4,11 +4,11 @@
 <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
 	 width="48px" height="48px" viewBox="0 0 48 48" enable-background="new 0 0 48 48" xml:space="preserve">
 <symbol  id="ic_x5F_keyboard_x0D_" viewBox="0 -24 24 24">
-	<path fill="#FFFFFF" d="M21-5H3C1.896-5,1.01-5.896,1.01-7L1-18c0-1.104,0.896-2,2-2h18c1.104,0,2,0.896,2,2v11
+	<path fill="#666666" d="M21-5H3C1.896-5,1.01-5.896,1.01-7L1-18c0-1.104,0.896-2,2-2h18c1.104,0,2,0.896,2,2v11
 		C23-5.896,22.104-5,21-5z M11-8h2v-2h-2V-8z M11-11h2v-2h-2V-11z M8-8h2v-2H8V-8z M8-11h2v-2H8V-11z M7-13H5v2h2V-13z M7-10H5v2h2
 		V-10z M16-17H8v2h8V-17z M16-13h-2v2h2V-13z M16-10h-2v2h2V-10z M19-13h-2v2h2V-13z M19-10h-2v2h2V-10z"/>
 	<polygon fill="none" points="24,-24 0,-24 0,0 24,0 	"/>
 </symbol>
 <use xlink:href="#ic_x5F_keyboard_x0D_"  width="24" height="24" id="XMLID_144_" y="-24" transform="matrix(1 0 0 -1 12 10)" overflow="visible"/>
-<polygon fill="#FFFFFF" points="21,32 27,32 24,35 "/>
+<polygon fill="#666666" points="21,32 27,32 24,35 "/>
 </svg>