AI 147054: am: CL 147053 Add -hdf primer vars for the platform and release ID associated with the current (most recent) SDK.
  Currently, the docs that are specific to each SDK release -- downloading, installing, upgrading, requirements -- are stored in a directory with release-derived name, such as "1.1_r1". This change lets documents use generic links to point into the most recent version specific docs, eg href="{@docRoot}sdk/{sdkCurrent}/installing.html" instead of href="{@docRoot}sdk/1.1_r1/installing.html".
  Original author: ddougherty
  Merged from: //branches/cupcake/...

Automated import of CL 147054
diff --git a/tools/droiddoc/templates/macros.cs b/tools/droiddoc/templates/macros.cs
index aec9c22..3ba743b 100644
--- a/tools/droiddoc/templates/macros.cs
+++ b/tools/droiddoc/templates/macros.cs
@@ -61,6 +61,9 @@
       elif:tag.name == "@sample" ?><pre class="Code prettyprint"><?cs var:tag.text ?></pre><?cs
       elif:tag.name == "@include" ?><?cs var:tag.text ?><?cs
       elif:tag.kind == "@docRoot" ?><?cs var:toroot ?><?cs
+      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 == "@inheritDoc" ?><?cs # This is the case when @inheritDoc is in something
                                               that doesn't inherit from anything?><?cs
       elif:tag.kind == "@attr" ?><?cs