History page: Removing ugly css hack (negative margins).

chrome/browser/resources/history.css

 /* Copyright (c) 2012 The Chromium Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
-#editing-controls button {
-  margin: 18px 0 -8px 0;
+#editing-controls {
+  margin-top: 16px;
+  white-space: nowrap;
+}
+
+#editing-controls button:first-of-type {
+  -webkit-margin-start: 0;
 }
 
 #results-display {
   margin: 16px 0 0 0;
   max-width: 740px;
 }
 
 .edit-button {
   -webkit-appearance: none;
   background: none;
@@ skipping 35 matching lines @@
   /* The box should be no bigger than its parent. */
   max-width: 100%;
   overflow: hidden;
   padding-bottom: 1px;
 }
 
 html[dir=rtl] .entry-box {
   float: right; /* To make the box shrink to fit its content. */
 }
 
+.day {
+  white-space: nowrap;
+}
+
 .search-results, .day-results {
   margin: 0 0 24px 0;
   padding: 0;
 }
 
 .snippet {
   -webkit-box-orient: vertical;
   -webkit-line-clamp: 2;
   -webkit-margin-start: 110px;
   clear: both;
@@ skipping 125 matching lines @@
 .fade-out {
   -webkit-transition: opacity 200ms;
   opacity: 0;
 }
 
 .page-navigation {
   -webkit-margin-end: 4px;
   background-color: rgb(235, 239, 249);
   padding: 8px;
 }