Update modal download dialogs for sdk/ndk download.
Revise the redirect behavior once download completes.
Add more appropriate title and download message when installing SDK tools only.
Force refresh when the Studio download dialog is dismissed, to avoid leaving the dialog in stale state.
Add styles for the Studio download page.

Change-Id: Ibc4ddb4a6130ab8bd8d6044472022465829f2000
diff --git a/tools/droiddoc/templates-sdk-dev/assets/css/default.css b/tools/droiddoc/templates-sdk-dev/assets/css/default.css
index 04f4b90..17a69c1 100644
--- a/tools/droiddoc/templates-sdk-dev/assets/css/default.css
+++ b/tools/droiddoc/templates-sdk-dev/assets/css/default.css
@@ -7793,6 +7793,20 @@
   text-align: center;
 }
 
+/* Android Studio download page */
+section#features {
+  padding-top:0;
+}
+.wrap.feature {
+  margin:80px auto;
+}
+.dac-section-links.feature-more {
+  margin-top:-20px;
+}
+.dac-toggle-content .wrap.feature {
+  margin-top:0;
+}
+
 @media (max-width: 719px) {
   .dac-hero-figure {
     height: 150px;
@@ -7802,6 +7816,17 @@
   .dac-hero-figure img {
     max-height: 150px;
   }
+
+  /* Android Studio download page */
+  .feature .dac-hero-figure,
+  .feature .dac-hero-figure img {
+    height:auto;
+    max-height:none;
+  }
+  .feature .dac-hero-figure img {
+    width:90%;
+    margin:0 auto;
+  }
 }
 
 .dac-hero-carousel {