Show third party wallpaper app name in wallpaper picker

chrome/browser/resources/chromeos/wallpaper_manager/css/wallpaper_manager.css

Index: chrome/browser/resources/chromeos/wallpaper_manager/css/wallpaper_manager.css
diff --git a/chrome/browser/resources/chromeos/wallpaper_manager/css/wallpaper_manager.css b/chrome/browser/resources/chromeos/wallpaper_manager/css/wallpaper_manager.css
index 1c18ab21462b09506d5d56952b7ddeff53fdad72..e7be6f48fdc353d3b3ca9e667d84d9e8f919954e 100644
--- a/chrome/browser/resources/chromeos/wallpaper_manager/css/wallpaper_manager.css
+++ b/chrome/browser/resources/chromeos/wallpaper_manager/css/wallpaper_manager.css
@@ -161,6 +161,16 @@ body {
   width: 16px;
 }
 
+#wallpaper-set-by-message {
+  -webkit-padding-end: 5px;
+  -webkit-padding-start: 15px;
+  height: 17px;
+}
+
+#wallpaper-set-by-message[hidden] + .image-picker {

[flackr, 2014/06/17 15:20:34]

Instead of hardcoding these sizes, can you use a box flex layout to size the
.image-picker to be the available space?

[bshe, 2014/06/17 19:01:43]

Done. I remember having some scrolling issues when set the wallpaper webui grid
to flex box. But it no longer reproduce.

+  height: 287px;
+}
+
 .image-picker {
   -webkit-padding-end: 5px;
   -webkit-padding-start: 15px;
@@ -170,7 +180,7 @@ body {
    * TODO(bshe): Find the root cause of the margin.
    */
   font-size: 0;
-  height: 287px;
+  height: 270px;
   outline: none;
   overflow-y: auto;
   padding-bottom: 15px;