Update the web store promo to be clearer and configurable at run-time.

chrome/browser/resources/ntp/apps.css

Index: chrome/browser/resources/ntp/apps.css
diff --git a/chrome/browser/resources/ntp/apps.css b/chrome/browser/resources/ntp/apps.css
index bbd5b38755702bcc76bbd6e1823d29c7b75ebc9c..1cbfdcec58e8f27583c5d4ff1abf55c6ebbfafeb 100644
--- a/chrome/browser/resources/ntp/apps.css
+++ b/chrome/browser/resources/ntp/apps.css
@@ -142,21 +142,21 @@ menu > button.default {
 }
 
 html.apps-promo-visible #apps-promo {
-  display: block;
+  background: url('chrome://theme/IDR_WEBSTORE_ICON') no-repeat;
+  height: 125px;
+  -webkit-padding-start: 125px;
+  display: table-cell;
+  vertical-align: text-bottom;
 }
 
-#apps-promo > h3 {
-  font-size: 16px;
-  margin-top: 1em;
-  margin-bottom: 0.25em;
-}
-
-#apps-promo-text1 {
-  margin-top: 0;
+#apps-promo-heading {
+  font-size: 115%;
+  font-weight: bold;
+  margin-bottom: 5px;
+  -webkit-margin-start: 3px;
 }
 
 #apps-promo-hide {
-  float: right;
   -webkit-appearance: none;
   -webkit-transition: opacity .15s;
   background-color: transparent;
@@ -165,27 +165,13 @@ html.apps-promo-visible #apps-promo {
   font-family: inherit;
   font-size: 90%;
   text-decoration: underline;
+  margin-top: 2px;
 }
 
 html[dir=rtl] #apps-promo-hide {
   float: left;
 }
 
-html.apps-promo-visible .app.web-store-entry {
-  position: absolute;
-  left: 100%;
-  top: 0;
-  -webkit-margin-start: 22px;
-}
-
-html.apps-promo-visible[dir=rtl] .app.web-store-entry {
-  right: 100%;
-}
-
-html.apps-promo-visible .app.web-store-entry a {
-  font-weight: bold;
-}
-
 /*
 We position the web store entry all by its lonesome in the top of the rightmost
 column when there is at least one full row of apps. Note that this is similar,
@@ -201,3 +187,59 @@ never set .loner while the promo is running.
 html[dir=rtl] .app.web-store-entry.loner {
   right: 100%;
 }
+
+/* g-button CSS styles (see go/buttons) */
+@media screen, projection {
+  g-button-basic * {
+    margin: 0;
+    padding: 0;
+  }
+
+  .g-button-basic {
+    direction: ltr;
+    line-height: 1.2;
+    width: 20em;
+    max-width: 795px;
+    background-color: #cadef4;
+    border: 1px solid #ccc;
+    padding: 15px;
+    text-align: center;
+    overflow: visible;
+  }
+
+  .g-button-basic div {
+    font-size: 1.3em;
+    background: url('g-button-chocobo-basic-1.png') no-repeat;
+    background-color: #5679a5;
+  }
+
+  .g-button-basic div span span a {
+    display: block;
+    color: #fff!important;
+    background: url('g-button-chocobo-basic-2.png') no-repeat right bottom;
+    padding: 8px 18px 13px 13px;
+    text-decoration: none;
+    font-weight: bold;
+  }
+
+  .g-button-basic div span {
+    display: block;
+    background: url('g-button-chocobo-basic-1.png') no-repeat right -400px;
+    height: 1%;
+  }
+  
+  .g-button-basic p {
+    text-align: center;
+    margin: 10px 0 0;
+  }
+  
+  .g-button-basic {
+    padding: 0;
+    background: none;
+    border: 0;
+  }
+
+  .g-button-basic div span span {
+    background: url('g-button-chocobo-basic-1.png') no-repeat left bottom;
+  }
+}