DocumentsUI tablet support.

Shows as a faux dialog on larger tablets, since the normal dialog
themes from framework don't support action bars.  Instead, this hacks
itself to look like a dialog with an InsetDrawable.  Detects touches
in dim area to dismiss dialog.

Show all action bar icons on tablets, and roots panel is always
visible with a different shadow. Show settings in dialog. Allow mode
switches in recents.

Bug: 10329832
Change-Id: Id02982ce7b0d4694962d32f8d5286fdfcc207208
diff --git a/res/values/styles.xml b/res/values/styles.xml
index 59fbd6f..945e7ae 100644
--- a/res/values/styles.xml
+++ b/res/values/styles.xml
@@ -14,7 +14,7 @@
      limitations under the License.
 -->
 
-<resources>
+<resources xmlns:android="http://schemas.android.com/apk/res/android">
     <style name="TextAppearance" />
 
     <style name="TextAppearance.Medium">
@@ -26,4 +26,8 @@
         <item name="android:textAppearance">?android:attr/textAppearanceSmall</item>
         <item name="android:textColor">?android:attr/textColorTertiary</item>
     </style>
+
+    <!-- Normally just a redirection, but this is used to make ourselves a
+         dialog on large tablets -->
+    <style name="Theme" parent="@android:style/Theme.Holo.Light" />
 </resources>