history: announce search/time ranges.

chrome/browser/resources/history/history_mobile.css

Index: chrome/browser/resources/history/history_mobile.css
diff --git a/chrome/browser/resources/history/history_mobile.css b/chrome/browser/resources/history/history_mobile.css
index fef07f3041322d97890ba61fee0e195dafd688f7..bbcf3b83eea6ecdf4e46dd491bcff00776c47baa 100644
--- a/chrome/browser/resources/history/history_mobile.css
+++ b/chrome/browser/resources/history/history_mobile.css
@@ -82,16 +82,6 @@ html[dir='rtl'] #search-field {
   background-position: right 16px center;
 }
 
-.no-results-message {
-  margin-bottom: 1em;
-  padding-left: 16px;
-  padding-right: 16px;
-}
-
-.search-results .no-results-message {
-  margin-top: 1em;
-}
-
 #notification-bar.alone {
   float: none;
   font-size: 75%;
@@ -297,8 +287,7 @@ input {
 
   h1,
   #notification-bar,
-  #loading-spinner,
-  .no-results-message {
+  #loading-spinner {
     padding-left: 0;
     padding-right: 0;
   }