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

chrome/browser/resources/history.css

Index: chrome/browser/resources/history.css
diff --git a/chrome/browser/resources/history.css b/chrome/browser/resources/history.css
index d1e11893021e01275df875bc4d49354e188d2280..d25920fafdb279646a55b1653a80c4fb97f91bc3 100644
--- a/chrome/browser/resources/history.css
+++ b/chrome/browser/resources/history.css
@@ -3,8 +3,13 @@
  * 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 {
@@ -60,6 +65,10 @@ 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;