Add new templates directory for "reference only" builds.
The only difference is that this changes the masthead.cs file to show a different header.

Change-Id: Id58eb7e8c42a8ab0886f2f5da794fcd108f299ff
diff --git a/tools/droiddoc/templates-sdk-refonly/components/masthead.cs b/tools/droiddoc/templates-sdk-refonly/components/masthead.cs
new file mode 100644
index 0000000..3a0f970
--- /dev/null
+++ b/tools/droiddoc/templates-sdk-refonly/components/masthead.cs
@@ -0,0 +1,169 @@
+<?cs def:custom_masthead() ?>
+<a name="top"></a>
+
+<!-- dialog to prompt lang pref change when loaded from hardcoded URL
+<div id="langMessage" style="display:none">
+  <div>
+    <div class="lang en">
+      <p>You requested a page in English, would you like to proceed with this language setting?</p>
+    </div>
+    <div class="lang es">
+      <p>You requested a page in Spanish (Español), would you like to proceed with this language setting?</p>
+    </div>
+    <div class="lang ja">
+      <p>You requested a page in Japanese (日本語), would you like to proceed with this language setting?</p>
+    </div>
+    <div class="lang ko">
+      <p>You requested a page in Korean (한국어), would you like to proceed with this language setting?</p>
+    </div>
+    <div class="lang ru">
+      <p>You requested a page in Russian (Русский), would you like to proceed with this language setting?</p>
+    </div>
+    <div class="lang zh-cn">
+      <p>You requested a page in Simplified Chinese (简体中文), would you like to proceed with this language setting?</p>
+    </div>
+    <div class="lang zh-tw">
+      <p>You requested a page in Traditional Chinese (繁體中文), would you like to proceed with this language setting?</p>
+    </div>
+    <a href="#" class="button yes" onclick="return false;">
+      <span class="lang en">Yes</span>
+      <span class="lang es">Sí</span>
+      <span class="lang ja">Yes</span>
+      <span class="lang ko">Yes</span>
+      <span class="lang ru">Yes</span>
+      <span class="lang zh-cn">是的</span>
+      <span class="lang zh-tw">没有</span>
+    </a>
+    <a href="#" class="button" onclick="$('#langMessage').hide();return false;">
+      <span class="lang en">No</span>
+      <span class="lang es">No</span>
+      <span class="lang ja">No</span>
+      <span class="lang ko">No</span>
+      <span class="lang ru">No</span>
+      <span class="lang zh-cn">没有</span>
+      <span class="lang zh-tw">没有</span>
+    </a>
+  </div>
+</div> -->
+
+<?cs if:!devsite ?><?cs # leave out the global header for devsite; it is in devsite template ?>
+  <!-- Header -->
+  <div id="header-wrapper">
+    <div class="dac-header" id="header"><?cs call:butter_bar() ?>
+      <div class="dac-header-inner">
+        <a class="dac-nav-toggle" data-dac-toggle-nav href="javascript:;" title="Open navigation">
+          <span class="dac-nav-hamburger">
+            <span class="dac-nav-hamburger-top"></span>
+            <span class="dac-nav-hamburger-mid"></span>
+            <span class="dac-nav-hamburger-bot"></span>
+          </span>
+        </a>
+        <?cs if:ndk ?><a class="dac-header-logo" href="<?cs var:toroot ?>ndk/index.html">
+          <img class="dac-header-logo-image" src="<?cs var:toroot ?>assets/images/android_logo_ndk.png"
+              srcset="<?cs var:toroot ?>assets/images/android_logo_ndk@2x.png 2x"
+              width="32" height="36" alt="Android" /> NDK
+          </a><?cs else ?><a class="dac-header-logo" href="<?cs var:toroot ?>index.html">
+          <img class="dac-header-logo-image" src="<?cs var:toroot ?>assets/images/android_logo.png"
+              srcset="<?cs var:toroot ?>assets/images/android_logo@2x.png 2x"
+              width="32" height="36" alt="Android" /> Developers
+          </a><?cs /if ?>
+
+        <ul class="dac-header-crumbs">
+          <?cs # More <li> elements added here with javascript ?>
+          <?cs if:!section.landing ?><li class="dac-header-crumbs-item"><span class="dac-header-crumbs-link current <?cs
+            if:ndk ?>ndk<?cs /if ?>"><?cs var:page.title ?></a></li><?cs
+          /if ?>
+        </ul>
+
+        <?cs # ADD SEARCH AND MENU ?>
+        <?cs if:!ndk ?>
+        <?cs call:header_search_widget() ?>
+        <?cs /if ?>
+
+        <?cs if:ndk ?><a class="dac-header-console-btn" href="http://developer.android.com">
+          <span class="dac-visible-desktop-inline">Back to Android Developers</span>
+        </a><?cs else ?><a class="dac-header-console-btn" href="https://play.google.com/apps/publish/">
+          <span class="dac-sprite dac-google-play"></span>
+          <span class="dac-visible-desktop-inline">Developer</span>
+          Console
+        </a><?cs /if ?>
+
+      </div><!-- end header-wrap.wrap -->
+    </div><!-- end header -->
+
+    <div id="searchResults" class="wrap" style="display:none;">
+      <h2 id="searchTitle">Results</h2>
+      <div id="leftSearchControl" class="search-control">Loading...</div>
+    </div>
+  </div> <!--end header-wrapper -->
+
+  <?cs if:ndk ?>
+  <!-- NDK Navigation-->
+  <nav class="dac-nav">
+    <div class="dac-nav-dimmer" data-dac-toggle-nav></div>
+
+    <ul class="dac-nav-list" data-dac-nav>
+      <li class="dac-nav-item dac-nav-head">
+        <a class="dac-nav-link dac-nav-logo" data-dac-toggle-nav href="javascript:;" title="Close navigation">
+          <img class="dac-logo-image" src="<?cs var:toroot ?>assets/images/android_logo_ndk.png"
+               srcset="<?cs var:toroot ?>assets/images/android_logo_ndk@2x.png 2x"
+               width="32" height="36" alt="Android" /> NDK
+        </a>
+      </li>
+      <li class="dac-nav-item reference">
+        <a class="dac-nav-link" href="<?cs var:toroot ?>ndk/reference/index.html"
+           zh-tw-lang="參考資源"
+           zh-cn-lang="参考"
+           ru-lang="Справочник"
+           ko-lang="참조문서"
+           ja-lang="リファレンス"
+           es-lang="Referencia">Reference</a>
+      </li>
+    </ul>
+  </nav>
+  <!-- end NDK navigation-->
+  <?cs else ?>
+  <!-- Navigation-->
+  <nav class="dac-nav">
+    <div class="dac-nav-dimmer" data-dac-toggle-nav></div>
+
+    <ul class="dac-nav-list" data-dac-nav>
+      <li class="dac-nav-item dac-nav-head">
+        <a class="dac-nav-link dac-nav-logo" data-dac-toggle-nav href="javascript:;" title="Close navigation">
+          <img class="dac-logo-image" src="<?cs var:toroot ?>assets/images/android_logo.png"
+               srcset="<?cs var:toroot ?>assets/images/android_logo@2x.png 2x"
+               width="32" height="36" alt="Android" /> Developers
+        </a>
+      </li>
+      <li class="dac-nav-item develop">
+        <a class="dac-nav-link has-subnav" href="/reference/packages.html" zh-tw-lang="參考資源" 
+        zh-cn-lang="参考" ru-lang="Справочник" ko-lang="참조문서" ja-lang="リファレンス" 
+        es-lang="Referencia">Android <?cs var:sdk.version ?>&nbsp;r<?cs var:sdk.rel.id ?></a>
+      </li>
+    </ul>
+  </nav>
+  <!-- end navigation-->
+  <?cs /if ?>
+<?cs /if ?><?cs # end if/else !devsite ?>
+
+<?cs
+/def ?><?cs # end custom_masthead() ?>
+
+
+<?cs # (UN)COMMENT THE INSIDE OF THIS METHOD TO TOGGLE VISIBILITY ?>
+<?cs def:butter_bar() ?>
+
+<?cs # HIDE THE BUTTER BAR
+
+    <div style="height:20px"><!-- spacer to bump header down --></div>
+    <div id="butterbar-wrapper">
+      <div id="butterbar">
+        <a href="http://googleblog.blogspot.com/" id="butterbar-message">
+          The Android 5.0 SDK will be available on October 17th!
+        </a>
+      </div>
+    </div>
+
+?>
+
+<?cs /def ?>