Split the Website Settings page's origin list into Allowed and Blocked lists.

chrome/browser/resources/options/website_settings.css

Index: chrome/browser/resources/options/website_settings.css
diff --git a/chrome/browser/resources/options/website_settings.css b/chrome/browser/resources/options/website_settings.css
index ffa33843e6d94c40059af9d348a068a64840825a..eb234b537c42a5997538a58340693f25d8518986 100644
--- a/chrome/browser/resources/options/website_settings.css
+++ b/chrome/browser/resources/options/website_settings.css
@@ -3,7 +3,6 @@
  * found in the LICENSE file. */
 
 #website-settings-page {
-  max-height: 445px;
   min-width: 540px;
 }
 
@@ -113,11 +112,21 @@
 }
 
 /* Styles for the origin list elements in the website settings page. */
-#origin-list {
+.origin-list {
   border: 1px solid #d9d9d9;
   font-size: 13px;
+  height: 192px;
   margin: 5px 0 0;
-  min-height: 287px;
+}
+
+#website-settings-page .blocked-origin-list {
+  height: 128px;
+  min-height: 128px;
+}
+
+#website-settings-page .nonsplit-origin-list {
+  height: 357px;
+  min-height: 357px;
 }
 
 #origin-list-item {