DOMUI prefs: Widen sidebar and content

chrome/browser/resources/options/options_page.css

 body {
   -webkit-user-select: none;
   cursor: default;
   font-size: 100%;
 }
 
 #settings-title {
   -webkit-padding-end: 24px;
   color: #53637d;
   font-size: 200%;
@@ skipping 94 matching lines @@
                                right top,
                                from(#eaeef3),
                                color-stop(0.97, #eaeef3),
                                to(#d3d7db));
   bottom: 0;
   cursor: pointer;
   display: none;
   left: 0;
   position: fixed;
   top: 0;
-  width: 250px;
+  width: 266px;
   z-index: 2;
 }
 
 html[dir='rtl'] #navbar-container {
   background: -webkit-gradient(linear,
                                left top,
                                left bottom,
                                from(rgba(255, 255, 255, 0)),
                                color-stop(0.7, rgba(255, 255, 255, 0)),
                                to(white)),
@@ skipping 42 matching lines @@
   color: black;
   font-weight: bold;
 }
 
 .navbar-item-normal {
   background-color: #dfdfdf;
 }
 
 #mainview {
   -webkit-box-align: stretch;
-  -webkit-padding-start: 251px;
+  -webkit-padding-start: 267px;
   margin: 0;
   position: absolute;
   left: 0;
   right: 0;
   top: 0;
   bottom: 0;
   z-index: 1;
 }
 
 html[hide-menu=true] #mainview {
   -webkit-padding-start: 0;
 }
 
 #mainview-content {
   box-sizing: border-box;
+  max-width: 888px;
   min-height: 100%;
+  min-width: 600px;
   padding: 0 24px;
   position: relative;
-  width: 600px;
 }
 
 #subpage-sheet-container {
   box-sizing: border-box;
   height: 100%;
   padding: 8px;
   -webkit-padding-start: 60px;
   position: absolute;
   top: 0;
   left: 0;
@@ skipping 217 matching lines @@
 label.radio > span,
 .suboption {
   -webkit-margin-start: 16px;
   display: block;
 }
 
 html[os=mac] label.checkbox > input,
 html[os=mac] label.radio > input {
   margin-top: 2px;
 }