Fixes a regression in launching certain settings activities.

Some undocumented settings and class names are being used by NotificationManagerService.
Added compatibility activities to handle them.

Bug: 3258668
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 9523c61..eb1c078 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -248,6 +248,22 @@
                 android:value="com.android.settings.Settings$WirelessSettingsActivity" />
         </activity>
 
+        <!-- Keep compatibility with old shortcuts. -->
+        <activity-alias android:name=".TetherSettings"
+                  android:label="@string/tether_settings_title_all"
+                  android:clearTaskOnLaunch="true"
+                  android:exported="true"
+                  android:targetActivity="Settings$TetherSettingsActivity">
+            <meta-data android:name="com.android.settings.FRAGMENT_CLASS"
+                android:value="com.android.settings.TetherSettings" />
+            <meta-data android:name="com.android.settings.TOP_LEVEL_HEADER_ID"
+                android:resource="@id/wireless_settings" />
+            <meta-data android:name="com.android.settings.PARENT_FRAGMENT_TITLE"
+                android:resource="@string/wireless_networks_settings_title" />
+            <meta-data android:name="com.android.settings.PARENT_FRAGMENT_CLASS"
+                android:value="com.android.settings.Settings$WirelessSettingsActivity" />
+        </activity-alias>
+
         <activity android:name="Settings$VpnSettingsActivity"
                 android:theme="@android:style/Theme.Holo"
                 android:label="@string/vpn_settings_activity_title"
@@ -771,6 +787,7 @@
                 android:clearTaskOnLaunch="true">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
+                <action android:name="android.settings.APPLICATION_DEVELOPMENT_SETTINGS" />
                 <action android:name="com.android.settings.APPLICATION_DEVELOPMENT_SETTINGS" />
                 <category android:name="android.intent.category.DEFAULT" />
             </intent-filter>
@@ -784,6 +801,26 @@
                 android:value="com.android.settings.Settings$ApplicationSettingsActivity" />
         </activity>
 
+        <activity-alias android:name="DevelopmentSettings"
+                  android:clearTaskOnLaunch="true"
+                  android:exported="true"
+                  android:label="@string/development_settings_title"
+                  android:targetActivity="Settings$DevelopmentSettingsActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <action android:name="android.settings.APPLICATION_DEVELOPMENT_SETTINGS" />
+                <action android:name="com.android.settings.APPLICATION_DEVELOPMENT_SETTINGS" />
+                <category android:name="android.intent.category.DEFAULT" />
+            </intent-filter>
+            <meta-data android:name="com.android.settings.FRAGMENT_CLASS"
+                android:value="com.android.settings.DevelopmentSettings" />
+            <meta-data android:name="com.android.settings.TOP_LEVEL_HEADER_ID"
+                android:resource="@id/application_settings" />
+            <meta-data android:name="com.android.settings.PARENT_FRAGMENT_TITLE"
+                android:resource="@string/applications_settings_header" />
+            <meta-data android:name="com.android.settings.PARENT_FRAGMENT_CLASS"
+                android:value="com.android.settings.Settings$ApplicationSettingsActivity" />
+        </activity-alias>
 
 
         <!-- Bluetooth stuff -->
diff --git a/src/com/android/settings/SoundSettings.java b/src/com/android/settings/SoundSettings.java
index f5e9290..cc38c23 100644
--- a/src/com/android/settings/SoundSettings.java
+++ b/src/com/android/settings/SoundSettings.java
@@ -261,6 +261,8 @@
 
     // updateState in fact updates the UI to reflect the system state
     private void updateState(boolean force) {
+        if (getActivity() == null) return;
+
         final int ringerMode = mAudioManager.getRingerMode();
 
         // NB: in the UI we now simply call this "silent mode". A separate