Use correct parent for "BackgroundOnly" theme

Also rename it to "BackgroundOnlyTheme" for consistency

Bug: 5216724
Change-Id: I2e4917f37d610d1ec5ccb5652dbd44d326c11943
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 40d5c26..01a6f95 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -597,7 +597,7 @@
         <!-- vCard related -->
         <activity android:name=".vcard.ImportVCardActivity"
             android:configChanges="orientation|screenSize|keyboardHidden"
-            android:theme="@style/BackgroundOnly">
+            android:theme="@style/BackgroundOnlyTheme">
             <intent-filter>
                 <action android:name="android.intent.action.VIEW" />
                 <data android:mimeType="text/directory" />
@@ -610,7 +610,7 @@
 
         <activity android:name=".vcard.NfcImportVCardActivity"
             android:configChanges="orientation|screenSize|keyboardHidden"
-            android:theme="@style/BackgroundOnly">
+            android:theme="@style/BackgroundOnlyTheme">
             <intent-filter>
                 <action android:name="android.nfc.action.NDEF_DISCOVERED" />
                 <data android:mimeType="text/vcard" />
@@ -621,13 +621,13 @@
         </activity>
 
         <activity android:name=".vcard.CancelActivity"
-            android:theme="@style/BackgroundOnly" />
+            android:theme="@style/BackgroundOnlyTheme" />
 
         <activity android:name=".vcard.SelectAccountActivity"
-            android:theme="@style/BackgroundOnly" />
+            android:theme="@style/BackgroundOnlyTheme" />
 
         <activity android:name=".vcard.ExportVCardActivity"
-            android:theme="@style/BackgroundOnly" />
+            android:theme="@style/BackgroundOnlyTheme" />
 
         <service
             android:name=".vcard.VCardService"
diff --git a/res/values-sw580dp/styles.xml b/res/values-sw580dp/styles.xml
index 8e56bac..52eab18 100644
--- a/res/values-sw580dp/styles.xml
+++ b/res/values-sw580dp/styles.xml
@@ -123,7 +123,7 @@
         <item name="android:layout_height">200dip</item>
     </style>
 
-    <style name="BackgroundOnly" parent="@android:Theme.Holo.Light">
+    <style name="BackgroundOnlyTheme" parent="@android:Theme.Holo.Light">
         <item name="android:windowBackground">@null</item>
         <item name="android:windowContentOverlay">@null</item>
         <item name="android:windowAnimationStyle">@null</item>
diff --git a/res/values/styles.xml b/res/values/styles.xml
index 51b2c0c..9bdf669 100644
--- a/res/values/styles.xml
+++ b/res/values/styles.xml
@@ -92,7 +92,7 @@
         <item name="android:textColorSecondary">@color/secondary_text_color</item>
     </style>
 
-    <style name="BackgroundOnly">
+    <style name="BackgroundOnlyTheme" parent="@android:style/Theme.Holo.Light">
         <item name="android:windowBackground">@null</item>
         <item name="android:windowContentOverlay">@null</item>
         <item name="android:windowAnimationStyle">@null</item>