ntp4: respect non-default apps promo logo

chrome/browser/resources/ntp4/apps_page.css

Index: chrome/browser/resources/ntp4/apps_page.css
diff --git a/chrome/browser/resources/ntp4/apps_page.css b/chrome/browser/resources/ntp4/apps_page.css
index 7f4847a1212e5bc18973d9f8384c75e65ec47cfa..8591d71ec298dafd79bf252ad74406b36a0a1821 100644
--- a/chrome/browser/resources/ntp4/apps_page.css
+++ b/chrome/browser/resources/ntp4/apps_page.css
@@ -26,15 +26,19 @@
   white-space: nowrap;
 }
 
-.app-contents > img {
+.app-img-container {
   cursor: pointer;
-  display: block;
   margin-left: auto;
   margin-right: auto;
   /* -webkit-mask-image set by JavaScript to the image source */
   -webkit-mask-size: 100% 100%;
 }
 
+.app-img-container > * {
+  height: 100%;
+  width: 100%;
+}
+
 .app-icon-div {
   /* TODO(gbillock): find a better style for this div. Better border color? */
   border: 1px solid gray;
@@ -68,6 +72,22 @@
   display: none;
 }
 
+.tile:only-of-type > .has-promo .app-img-container > .apps-promo-logo {
+  display: block;
+}
+
+.apps-promo-logo {
+  display: none;
+}
+
+.tile:only-of-type > .has-promo .app-img-container > img:first-child {
+  display: none;
+}
+
+.app-img-container > img:first-child {
+  display: block;
+}
+
 /* TODO(estade): animation? */
 .tile:only-of-type > .has-promo > .apps-promo-extras {
   display: block;