docs: Updated images and content on "Google Sign-In" page.

Removed 3 outdated images and replaced with a banner image. Also
updated content layout to fill the page appropriately given new
(single) image.

Bug: 26243119
Change-Id: I4bd71e2a22175ad8fe3bf592e80ff558877f0b11

docs/html/distribute/engage/easy-signin.jd

@@ -1,70 +1,66 @@
-page.title=Add Quick and Secure Google Sign-in
+page.title=Add Quick and Secure Google Sign-In
 page.metaDescription=Increase conversion rates while helping users minimize typing by letting users sign in with Google+.
 page.tags="google", "identity", "signin"
 page.image=images/cards/google-sign-in_2x.png
 
 @jd:body
 
-<p>Get people into your apps quickly and securely, using a registration system they
-already use and trust – their Google account. With minimal effort, you can increase
-registration and sign-in conversion by adding trusted registration system that's
-familiar to users, consistent across devices, and quick and easy to use.</p>
-
-<p>Get started <a href="https://developers.google.com/identity/sign-in/">integrating
-Google sign-in into your apps and games</a>.</p>
-
-<div class="wrap">
-  <div class="cols" style="margin-top:2em;">
-    <div class="col-3of12">
-      <h3>Quick and secure app access</h3>
-        <p>A secure authentication system that makes sign-in easy for your users by
-        letting them use their Google account, which they already use with Gmail,
-        Play, Google+, and other Google services.</p>
-    </div>
-    <div class="col-8of12 col-push-1of12">
-     <img src="{@docRoot}images/distribute/signin-secure.png" style="padding-top:1em;">
-    </div>
-  </div>
-
-  <div class="cols" style="margin-top:2em;">
-    <div class="col-3of12">
-      <h3>Seamless experience across screens</h3>
-      <p>Keep your users engaged, no matter what device they pick up or sit down at.
-      Offer a seamless app experience across devices and into your website, securely
-      from a one-time consent. </p>
-    </div>
-    <div class="col-8of12  col-push-1of12">
-      <img src="{@docRoot}images/distribute/signin-seamless.png" style="padding-top:1em;">
-    </div>
-  </div>
-
-  <div class="cols" style="margin-top:2em;">
-    <div class="col-3of12">
-      <h3>Help your users take action with Google</h3>
-        <p>Securely connect users with Google services and let them pay with Google
-        Wallet, share with Google contacts, save files to Drive, add events to
-        Calendar, and more.</p>
-    </div>
-    <div class="col-8of12 col-push-1of12">
-     <img src="{@docRoot}images/distribute/signin-apps.png" style="padding-top:1em;">
-    </div>
-  </div>
+<div class="figure">
+  <img src="{@docRoot}images/distribute/google-sign-in-banner.png" style="width:512px;">
 </div>
+<p>
+  Get customers into your apps quickly and securely using a registration system that they
+  already use and trust &ndash; their Google account. With minimal effort, you can increase
+  registration and sign-in conversion by adding a trusted registration system that's familiar
+  to users, consistent across devices, and quick and easy to use.
+</p>
 
+<h2 id="tips">Benefits</h2>
 
-<h2>Tips</h2>
+<p>These are some of the ways Sign-In can improve your app:</p>
 
 <ul>
-<li>Add <strong>over-the-air installs</strong> to your website. After signing in with Google
-  on the web, users will have the option to send your Android app to their device instantly,
-  without them ever leaving your website.</li>
-  <li>With Google sign-in, you can take advantage of other <strong>Google+ platform
-  features</strong> like adding a +1 button so users can make recommendations and the ability
-  to share rich content to the Google+ stream.</li>
+  <li>
+    <strong>Quick and secure app access</strong>: Google Sign-In is a secure authentication
+    system that makes sign-in easy for your users by letting them use their Google account,
+    which they already use with Gmail, Google Play, Google+, and other Google services.
+  </li>
+
+  <li>
+    <strong>Seamless experience across screens</strong>: Keep your users engaged, no matter
+    what device they choose. Offer a secure and seamless app experience across devices and
+    into your website, from a one-time consent.
+  </li>
+
+  <li>
+    <strong>Convenient access to Google services</strong>: Securely connect users with
+    Google services and let them pay with Google Wallet, share with Google Contacts, save files
+    to Google Drive, and add events to Google Calendar.
+  </li>
 </ul>
 
+<p>Get started integrating<a href="https://developers.google.com/identity/sign-in/">
+Google Sign-In</a> into your apps and games.</p>
 
-<h2 style="clear:both" id="related-resources">Related Resources</h2>
+<h2 id="tips">Tips</h2>
+
+<p>Here are some suggestions for enhancing the Sign-In user experience:</p>
+
+<ul>
+  <li>
+    Add <strong>over-the-air installs</strong> to your website. After signing in with Google
+    on the web, users have the option to send your Android app to their device instantly,
+    without ever leaving your website.
+  </li>
+
+  <li>
+    With Google Sign-In, you can take advantage of other <strong>Google+ platform
+    features</strong>, like adding a +1 button so users can make recommendations and have
+    the ability to share rich content to their Google+ streams.
+  </li>
+</ul>
+
+<h2 style="clear:both" id="related-resources">Related resources</h2>
 
 <div class="resource-widget resource-flow-layout col-13"
   data-query="collection:distribute/engage/gplus"
@@ -72,5 +68,3 @@ Google sign-in into your apps and games</a>.</p>
   data-cardsizes="9x3"
   data-maxresults="4">
 </div>
-
-

docs/html/jd_extras_en.js

@@ -2878,7 +2878,7 @@ METADATA['en'].extras = METADATA['en'].extras.concat([
     "url": "https://developers.google.com/identity/sign-in/android/people",
     "timestamp": 1383243492000,
     "image": "images/cards/google-sign-in_2x.png",
-    "title": "Get user profile details",
+    "title": "Get User Profile Details",
     "summary": "After users sign-in with Google, you can access their age range, language, and public profile information.",
     "keywords": ["signin", "identity", "google"],
     "type": "distribute",