Add a footer about other forms of history to the MD history page.

chrome/browser/resources/md_history/side_bar.html

Index: chrome/browser/resources/md_history/side_bar.html
diff --git a/chrome/browser/resources/md_history/side_bar.html b/chrome/browser/resources/md_history/side_bar.html
index 9468875d34d5b24a0c9c24e9c3ad5919d1b82a80..2b344d53da2d38154e6ed0f94aa945b6937dbc01 100644
--- a/chrome/browser/resources/md_history/side_bar.html
+++ b/chrome/browser/resources/md_history/side_bar.html
@@ -10,6 +10,7 @@
     <style include="shared-style">
       :host {
         display: block;
+        height: 100%;
         padding-top: 5px;
         width: var(--side-bar-width);
       }
@@ -40,7 +41,7 @@
       }
 
       paper-item {
-        -webkit-padding-start: 25px;
+        -webkit-padding-start: 24px;
         cursor: pointer;
         font-size: 14px;
         font-weight: 500;
@@ -55,6 +56,26 @@
         -webkit-user-select: none;
         color: #5a5a5a;
       }
+
+      #footer {
+        /* This compensates the 120px by which app-drawer protrudes under
+           the viewport. */

[Dan Beam, 2016/07/12 02:05:57]

I think you overthought what I meant by my last comment.

I just meant: you need a * at the beginning of the second line. As in, the full
comment should be

/* This compensates the 120px by which app-drawer protrudes under
 * the viewport. */
 ^
 |
 |
THIS "*" character here

but yes, the 120px this is weird, too.  I assume it's for like rubberband/touch
scrolling on Safari or something.

[msramek, 2016/07/12 13:56:36]

Ah :) Done.

( Nevertheless, I wanted to explain the 120px about which you asked at the
beginning of the previous iteration. )

+        bottom: 120px;
+        color: var(--paper-grey-600);
+        position: absolute;
+        width: var(--side-bar-width);
+      }
+
+      #footer-text {
+        -webkit-padding-end: 16px;
+        -webkit-padding-start: 24px;
+        margin: 24px 0;
+      }
+
+      #footer a {
+        color: var(--google-blue-700);
+        text-decoration: none;
+      }
     </style>
 
     <app-drawer id="drawer" tabindex="0" on-focus="onDrawerFocus_" swipe-open
@@ -75,6 +96,10 @@
         <paper-item on-tap="onClearBrowsingDataTap_" id="clear-browsing-data">
           $i18n{clearBrowsingData}
         </paper-item>
+        <div id="footer" hidden="[[!showFooter]]">
+          <div class="separator"></div>
+          <div id="footer-text">$i18nRaw{sidebarFooter}</div>
+        </div>
       </iron-selector>
     </app-drawer>
   </template>