doc change: template changes for new SDK doc structure.

Bug:2160782
diff --git a/tools/droiddoc/templates-sdk/header_tabs.cs b/tools/droiddoc/templates-sdk/header_tabs.cs
index 356916b..97d9048 100644
--- a/tools/droiddoc/templates-sdk/header_tabs.cs
+++ b/tools/droiddoc/templates-sdk/header_tabs.cs
@@ -20,9 +20,7 @@
 		<span style="display:none" class="zh-TW">首頁</span>
 	<?cs /if ?>
 	</a></li>
-	<li id="sdk-link"><a href="<?cs var:toroot ?><?cs 
-	                            if:android.whichdoc != "online" ?>sdk/RELEASENOTES.html<?cs 
-	                            else ?>sdk/<?cs var:sdk.current ?>/index.html<?cs /if ?>">
+	<li id="sdk-link"><a href="<?cs var:toroot ?>sdk/index.html">
 		<span class="en">SDK</span>
 	</a></li>
 	<li id="guide-link"><a href="<?cs var:toroot ?>guide/index.html" onClick="return loadLast('guide')">
diff --git a/tools/droiddoc/templates-sdk/sdkpage.cs b/tools/droiddoc/templates-sdk/sdkpage.cs
index 328eae1..b7ecd94 100644
--- a/tools/droiddoc/templates-sdk/sdkpage.cs
+++ b/tools/droiddoc/templates-sdk/sdkpage.cs
@@ -33,28 +33,29 @@
 <div class="g-unit" id="doc-content" >
   <div id="jd-header" class="guide-header" >
     <span class="crumb">&nbsp;</span>
-    <h1><?cs if:android.whichdoc == "online" ?>Download <?cs /if ?><?cs var:page.title ?></h1>
+    <h1><?cs if:android.whichdoc == "online" ?>Download the <?cs /if ?><?cs var:page.title ?></h1>
   </div>
 
   <div id="jd-content">
-    <p><em><?cs 
-    if:ndk ?><?cs 
-      var:ndk.date ?><?cs 
+    <?cs 
+    if:ndk ?><p><em><?cs 
+      var:ndk.date ?></em></p><?cs 
     else ?><?cs 
-      var:sdk.date ?><?cs 
-    /if ?></em>
-    </p>
+      if:android.whichdoc == "online" ?><p><em><?cs 
+      var:sdk.date ?></em></p><?cs 
+      /if ?><?cs
+    /if ?>
 
 <?cs if:sdk.not_latest_version ?>
   <div class="special">
     <p><strong>This is NOT the current Android SDK release.</strong></p>
-    <p><a href="/sdk/<?cs var:sdk.current ?>/index.html">Download the current Android SDK</a></p>
+    <p><a href="/sdk/index.html">Download the current Android SDK</a></p>
   </div>
 <?cs /if ?>
 
 <?cs if:android.whichdoc != "online" && !android.preview ?>
 
-<p>The sections below provide an overview of the SDK package. </p>
+<!-- <p>The sections below provide an overview of how to install the SDK package. </p> -->
 
 <?cs else ?>
   <?cs if:ndk ?>
@@ -118,6 +119,11 @@
 highlights.</p>
 <?cs /if ?>
 
+<p>To get started with the Android SDK, select a package from the table
+below and download it to your development computer. Next, install the package
+and then use the tools included to download one or more Android platforms, SDK
+add-ons, or other components into your SDK. </p>
+
 <p>Before downloading, please read the <a href="requirements.html">
 System Requirements</a> document. As you start the download, you will also need 
 to review and agree to the Terms and Conditions that govern the use of the 
diff --git a/tools/droiddoc/templates/macros.cs b/tools/droiddoc/templates/macros.cs
index 8675b5b..0c59f32 100644
--- a/tools/droiddoc/templates/macros.cs
+++ b/tools/droiddoc/templates/macros.cs
@@ -73,6 +73,15 @@
       elif:tag.kind == "@sdkCurrent" ?><?cs var:sdk.current ?><?cs
       elif:tag.kind == "@sdkCurrentVersion" ?><?cs var:sdk.version ?><?cs
       elif:tag.kind == "@sdkCurrentRelId" ?><?cs var:sdk.rel.id ?><?cs
+      elif:tag.kind == "@sdkPlatformVersion" ?><?cs var:sdk.platform.version ?><?cs
+      elif:tag.kind == "@sdkPlatformApiLevel" ?><?cs var:sdk.platform.apiLevel ?><?cs
+      elif:tag.kind == "@sdkPlatformMajorMinor" ?><?cs var:sdk.platform.majorMinor ?><?cs
+      elif:tag.kind == "@sdkPlatformReleaseDate" ?><?cs var:sdk.platform.releaseDate ?><?cs
+      elif:tag.kind == "@sdkPlatformDeployableDate" ?><?cs var:sdk.platform.deployableDate ?><?cs
+      elif:tag.kind == "@adtZipVersion" ?><?cs var:adt.zip.version ?><?cs
+      elif:tag.kind == "@adtZipDownload" ?><?cs var:adt.zip.download ?><?cs
+      elif:tag.kind == "@adtZipBytes" ?><?cs var:adt.zip.bytes ?><?cs
+      elif:tag.kind == "@adtZipChecksum" ?><?cs var:adt.zip.checksum ?><?cs
       elif:tag.kind == "@inheritDoc" ?><?cs # This is the case when @inheritDoc is in something
                                               that doesn't inherit from anything?><?cs
       elif:tag.kind == "@attr" ?><?cs