MD History: Update button style for CBD in sidenav

chrome/browser/resources/md_history/icons.html

Index: chrome/browser/resources/md_history/icons.html
diff --git a/chrome/browser/resources/md_history/icons.html b/chrome/browser/resources/md_history/icons.html
index 7f0f09a9dfe8f62f83eeae55e2831d2a0b206c1f..9b4cb8ed4914d987a4c9626e9a00559d06da35b5 100644
--- a/chrome/browser/resources/md_history/icons.html
+++ b/chrome/browser/resources/md_history/icons.html
@@ -11,6 +11,7 @@
       <g id="chevron-left"><path d="M15.41 7.41L14 6l-6 6 6 6 1.41-1.41L10.83 12z"></path></g>
       <g id="info-outline"><path d="M11 17h2v-6h-2v6zm1-15C6.48 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 8zM11 9h2V7h-2v2z"></path></g>
       <g id="today"><path d="M19 3h-1V1h-2v2H8V1H6v2H5c-1.11 0-1.99.9-1.99 2L3 19c0 1.1.89 2 2 2h14c1.1 0 2-.9 2-2V5c0-1.1-.9-2-2-2zm0 16H5V8h14v11zM7 10h5v5H7z"></path></g>
+      <g id="open-in-new"><path d="M19 19H5V5h7V3H5c-1.11 0-2 .9-2 2v14c0 1.1.89 2 2 2h14c1.1 0 2-.9 2-2v-7h-2v7zM14 3v2h3.59l-9.83 9.83 1.41 1.41L19 6.41V10h2V3h-7z"></path></g>

[Dan Beam, 2016/09/22 00:14:39]

settings also uses this icon:
https://cs.chromium.org/chromium/src/chrome/browser/resources/settings/icons....

which means it should go in the shared file:
ui/webui/resources/cr_elements/icons.html

[lshang, 2016/09/22 04:47:13]

Done. Also removed it from setting's icon set.

     </defs>
   </svg>
 </iron-iconset-svg>