Convert dialogs to holographic style.

Change-Id: If0fccab3d47c875f76bd6658c957e294bab28001
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index a96b8ee..c40d6e3 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -45,7 +45,7 @@
         </receiver>
         <activity android:name=".opp.BluetoothOppLauncherActivity"
             android:process="@string/process"
-            android:theme="@android:style/Theme.Dialog" android:label="@string/bt_share_picker_label">
+            android:theme="@android:style/Theme.Holo.Dialog" android:label="@string/bt_share_picker_label">
             <intent-filter>
                 <action android:name="android.intent.action.SEND" />
                 <category android:name="android.intent.category.DEFAULT" />
@@ -78,27 +78,27 @@
         <activity android:name=".opp.BluetoothOppBtEnableActivity"
                   android:process="@string/process"
                   android:excludeFromRecents="true"
-                  android:theme="@*android:style/Theme.Dialog.Alert">
+                  android:theme="@*android:style/Theme.Holo.Dialog.Alert">
         </activity>
         <activity android:name=".opp.BluetoothOppBtErrorActivity"
                   android:process="@string/process"
                   android:excludeFromRecents="true"
-                  android:theme="@*android:style/Theme.Dialog.Alert">
+                  android:theme="@*android:style/Theme.Holo.Dialog.Alert">
         </activity>
         <activity android:name=".opp.BluetoothOppBtEnablingActivity"
                   android:process="@string/process"
                   android:excludeFromRecents="true"
-                  android:theme="@*android:style/Theme.Dialog.Alert">
+                  android:theme="@*android:style/Theme.Holo.Dialog.Alert">
         </activity>
         <activity android:name=".opp.BluetoothOppIncomingFileConfirmActivity"
                   android:process="@string/process"
                   android:excludeFromRecents="true"
-                  android:theme="@*android:style/Theme.Dialog.Alert">
+                  android:theme="@*android:style/Theme.Holo.Dialog.Alert">
         </activity>
         <activity android:name=".opp.BluetoothOppTransferActivity"
                   android:process="@string/process"
                   android:excludeFromRecents="true"
-                  android:theme="@*android:style/Theme.Dialog.Alert">
+                  android:theme="@*android:style/Theme.Holo.Dialog.Alert">
         </activity>
         <activity android:name=".opp.BluetoothOppLiveFolder"
             android:process="@string/process"
@@ -118,7 +118,7 @@
         <activity android:name=".pbap.BluetoothPbapActivity"
             android:process="@string/process"
             android:excludeFromRecents="true"
-            android:theme="@*android:style/Theme.Dialog.Alert">
+            android:theme="@*android:style/Theme.Holo.Dialog.Alert">
             <intent-filter>
                 <category android:name="android.intent.category.DEFAULT" />
             </intent-filter>