NTP - Refactor the most visited code to uncouple it from the rest of the NTP....

chrome/browser/resources/new_new_tab.css

 html {
   /* This is needed because of chrome://theme/css/new_tab.css */
   height: 100%;
 }
 
 body {
   margin: 0;
   height: 100%;
   overflow: auto;
   -webkit-user-select: none;
@@ skipping 26 matching lines @@
   background-position-x: 100%;
 }
 
 html[anim=false] *,
 .no-anim, .no-anim *,
 .loading * {
   -webkit-transition: none !important;
   -webkit-animation: none !important;
 }
 
-/* Most Visited */
-
-#most-visited {
-  position: relative;
-  padding: 0;
-  height: 366px;
-  margin-top: -10px;
-  -webkit-user-select: none;
-  -webkit-transition: height .15s, opacity .15s;
-}
-
-.thumbnail-container {
-  position: absolute;
-  color: black;
-  text-decoration: none;
-  -webkit-transition: left .15s, right .15s, top .15s;
-}
-
-.list > .thumbnail-container {
-    overflow: hidden;
-}
-
-/* hide outline in thumbnail view */
-:not(.list) > .thumbnail-container:focus {
-  outline: none;
-}
-
-.thumbnail,
-.thumbnail-container > .title {
-  width: 207px; /* natural size is 196 */
-  height: 129px; /* 136 */
-  -webkit-transition: width .15s, height .15s;
-}
-
-.thumbnail-wrapper {
-  display: block;
-  background-size: 212px 132px;
-  background: no-repeat 4px 4px;
-  background-color: white;
-  border-radius: 5px;
-  -webkit-transition: background-size .15s;
-  position: relative;
-}
-
-.filler * {
-  visibility: hidden;
-}
-
-.filler {
-  pointer-events: none;
-}
-
-.filler .thumbnail-wrapper {
-  visibility: visible;
-  border: 3px solid hsl(213, 60%, 92%);
-}
-
-.list > .filler * {
-  visibility: hidden !important;
-}
-
-.filler .thumbnail {
-  visibility: inherit;
-  border: 1px solid white;
-  padding: 0;
-  background-color: hsl(213, 60%, 92%);
-}
-
-.edit-bar {
-  display: -webkit-box;
-  -webkit-box-orient: horizontal;
-  -webkit-box-align: stretch;
-  padding: 3px;
-  padding-bottom: 0;
-  height: 17px; /* 23 - 2 * 3 */
-  cursor: move;
-  font-size: 100%;
-  line-height: 17px;
-  background: hsl(213, 54%, 95%);
-  border-top-left-radius: 4px;
-  border-top-right-radius: 4px;
-  position: relative;
-  margin-top: 21px;
-  margin-bottom: -21px;
-  -webkit-transition: margin .15s, background .15s;
-}
-
-.edit-bar > * {
-  display: block;
-  position: relative;
-}
-
-.thumbnail-container:focus .edit-bar,
-.thumbnail-container:hover .edit-bar {
-  margin-top: 0;
-  margin-bottom: 0;
-  -webkit-transition-delay: .5s, 0s;
-
-  /* We need background-color as well to get the fade out animation correct */
-  background-color: hsl(213, 66%, 57%);
-  background-image: -webkit-gradient(linear, left top, left bottom,
-                                     from(hsl(213, 87%, 67%)),
-                                     to(hsl(213, 66%, 57%)));
-}
-
-.edit-bar > .spacer {
-  -webkit-box-flex: 1;
-}
-
-.edit-bar > .pin,
-.edit-bar > .remove {
-  width: 16px;
-  height: 16px;
-  cursor: pointer;
-  background-image: no-repeat 50% 50%;
-}
-
-.edit-bar > .pin {
-  background-image: url(chrome://theme/newtab_pin_off);
-}
-
-.edit-bar > .pin:hover {
-  background-image: url(chrome://theme/newtab_pin_off_h);
-}
-
-.edit-bar > .pin:active {
-  background-image: url(chrome://theme/newtab_pin_off_p);
-}
-
-.pinned .edit-bar > .pin {
-  background-image: url(chrome://theme/newtab_pin_on);
-}
-
-.pinned .edit-bar > .pin:hover {
-  background-image: url(chrome://theme/newtab_pin_on_h);
-}
-
-.pinned .edit-bar > .pin:active {
-  background-image: url(chrome://theme/newtab_pin_on_p);
-}
-
-.edit-bar > .remove {
-  background-image: url(chrome://theme/newtab_close);
-}
-
-.edit-bar > .remove:hover {
-  background-image: url(chrome://theme/newtab_close_h);
-}
-
-.edit-bar > .remove:active {
-  background-image: url(chrome://theme/newtab_close_p);
-}
-
 :link,
 :visited,
 .link {
   cursor: pointer;
   text-decoration: underline;
   color: hsla(213, 90%, 24%, 0.33333);
   -webkit-appearance: none;
   border: 0;
   background: none;
 }
 
 .link-color {
   color: hsl(213, 90%, 24%);
   text-decoration: none;
 }
 
-.thumbnail-container {
-  color: hsl(213, 90%, 24%);
-  text-decoration: none;
-}
-
-.thumbnail-container > .title {
-  line-height: 16px;
-  height: 16px;
-  margin: 0;
-  margin-top: 4px;
-  font-size: 100%;
-  font-weight: normal;
-  padding: 0 3px;
-  opacity: 1;
-  -webkit-transition: opacity .15s, width .15s;
-  color: black;
-}
-
-.thumbnail-container > .title > div {
-  white-space: nowrap;
-  overflow: hidden;
-  text-overflow: ellipsis;
-  background: no-repeat 0 50%;
-  background-size: 16px;
-  padding-left: 20px; /* we cannot use padding start here because even if we set
-                         the direction we always want the icon on the same side
-                      */
-  padding-right: 0;
-}
-
-html[dir=rtl] .thumbnail-container > .title > div {
-  background-position-x: 100%;
-  padding-left: 0;
-  padding-right: 20px;
-  text-align: right;
-}
-
-.thumbnail {
-  border: 3px solid hsl(213, 63%, 93%);
-  padding: 1px;
-  border-radius: 5px;
-  display: block;
-  -webkit-box-shadow: 0px 2px 2px hsla(0, 0%, 0%, 0);
-  -webkit-transition: width .15s, height .15s, border-color .15s,
-      border-radius .15s, -webkit-box-shadow .15s;
-}
-
-.edit-mode-border {
-  border-radius: 4px;
-
-  /* when dragged over we move this */
-  position: relative;
-  -webkit-transition: top .15s, left .15s;
-}
-
-.thumbnail-container:focus .thumbnail,
-.thumbnail-container:hover .thumbnail {
-  border-color: hsl(213, 66%, 57%);
-  -webkit-box-shadow: 0px 2px 2px hsla(0, 0%, 0%, 0);
-  -webkit-border-top-left-radius: 0;
-  -webkit-border-top-right-radius: 0;
-
-  background-image: -webkit-gradient(linear, left top, left bottom,
-    from(hsla(0, 0%, 0%, 0)),
-    color-stop(0.85, hsla(0, 0%, 47%, 0)),
-    to(hsla(0, 0%, 47%, 0.2))
-    );
-
-  /* delay border radius transition as much as the edit bar slide delay */
-  -webkit-transition-delay: 0, 0, 0, .5s, 0;
-}
-
-.thumbnail-container:focus > .edit-mode-border,
-.thumbnail-container:hover > .edit-mode-border {
-  background-color: hsl(213, 66%, 57%);
-  -webkit-box-shadow: 0px 2px 2px hsla(0, 0%, 0%, .5);
-}
-
-.dragging,
-.dragging * {
-  -webkit-transition: none !important;
-}
-
-.dragging > .title {
-  opacity: 0;
-}
-
-.list > .dragging > .title {
-  opacity: 1;
-}
-
 .hide {
   opacity: 0 !important;
   visibility: hidden !important;
   pointer-events: none;
 }
 
-@-webkit-keyframes 'fade-in' {
-  0% {
-    opacity: 0;
-  }
-
-  100% {
-    opacity: 1;
-  }
-}
-
-.fade-in {
-  -webkit-animation: 'fade-in' .15s;
-}
-
 /* Notification */
 
 #notification {
   position: relative;
   background-color: hsl(52, 100%, 80%);
   border: 1px solid rgb(211, 211, 211);
   border-radius: 6px;
   padding: 7px 15px;
   white-space: nowrap;
   display: table;
@@ skipping 40 matching lines @@
 }
 
 #notification > span > .blacklist-title {
   display: inline-block;
   max-width: 30ex;
   overflow: hidden;
   text-overflow: ellipsis;
   white-space: nowrap;
 }
 
-/* List mode */
-
-.list .thumbnail,
-.list .edit-bar {
-  display: none;
-}
-
-.list > .thumbnail-container {
-  -webkit-box-sizing: border-box;
-}
-
-.list > .thumbnail-container > .title {
-  font-size: 120%;
-  line-height: 34px;
-  height: 34px;
-  color: hsl(213, 27%, 68%);
-  width: 100%;
-}
-
-.list > .thumbnail-container {
-  color: hsl(213, 27%, 68%);
-  text-decoration: underline;
-}
-
-.list > .thumbnail-container > .title > div {
-  text-decoration: none;
-  color: rgb(6, 45, 117);
-}
-
 .item {
   background: no-repeat 0% 50%;
   padding: 2px;
   padding-left: 18px;
   background-size: 16px;
   background-color: hsla(213, 63%, 93%, 0);
   display: block;
   line-height: 20px;
   -webkit-box-sizing: border-box;
   white-space: nowrap;
@@ skipping 218 matching lines @@
 }
 
 #option-menu > [command=hide]:before {
   background-image: url(chrome://theme/newtab_checkbox_black);
 }
 
 #option-menu > [selected][command=hide]:before {
   background-image: url(chrome://theme/newtab_checkbox_white);
 }
 
-#most-visited.list {
-  height: 294px;
-}
-
-.list > .thumbnail-container {
-  max-width: 920px;
-}
-
 #attribution {
   margin: 10px 0;
 }
 
 /* promotions line and image */
 #bottom-right-promo {
   position: absolute;
   bottom: 0;
   right: 0;
   display: block;
@@ skipping 79 matching lines @@
 #promo-close:active {
   background-image: url(chrome://theme/close_bar_p);
 }
 
 #apps-section {
   padding: 10px 0px;
   border-top: 0;
 }
 
 #apps-launch-control {
-  margin-top: 0.5em;
+  margin-top: 10px;
 }
 
 #apps-launch-control input {
-  position:relative;
+  position: relative;
   top: 1px;
   margin-right: 0.2em;
   margin-left: 1em;
 }
 
 #apps-section a {
   -webkit-box-sizing: border-box;
   -webkit-transition: background-color .15s;
   background: rgba(255, 255, 255, 0) /* transparent white */
               no-repeat center 5px;
   background-size: 98px 98px;
   border-radius: 10px;
   color: black;
   display: inline-block;
   font-weight: bold;
   margin: 5px;
   margin-right:5px;
   overflow: hidden;
   padding: 5px;
   padding-top: 108px; /* 98 + 5 + 5 */
   text-align: center;
   text-decoration: none;
   text-overflow: ellipsis;
   white-space: nowrap;
   width: 105px; /* 920 / 8 - margin * 2 */
 }
 
-#debug h2 {
+#debug > h2 {
   color: red;
 }
 
+#debug > div {
+  margin: 0;
+}
+
 .section.disabled {
-  display: none!important;
+  display: none !important;
 }
 
 .section + :not(.hidden) {
   border-top: 0;
 }
 
 .section > div {
   margin-bottom: 10px;
 }
 
@@ skipping 44 matching lines @@
 }
 
 #apps {
   margin-top: 10px;
 }
 
 .section > * {
   font-size: 13px;
 }
 
-#recently-closed {
-  border-bottom: 0;
-}
-
 /* small */
 
 @media (max-width: 920px) {
 
   #main {
     width: 692px;
   }
 
-  #most-visited {
-    height: 294px;
-  }
-
-  .thumbnail,
-  .thumbnail-container > .title {
-    width: 150px;
-    height: 93px;
-  }
-
-  .thumbnail-container > .title {
-    height: auto;
-  }
-
-  .thumbnail-wrapper {
-    background-size: 150px 93px;
-  }
-
-  .list > .thumbnail-container {
-    max-width: 692px;
-  }
-
   #notification > * {
     max-width: 300px;
   }
 
   #notification > span > .blacklist-title {
     max-width: 15ex;
   }
 }