Misc fix on settings themes.

- Use dark status bar for confirmDeviceCreditials theme to match dark
  window background
- Remove SubSettingsDialogWhenLarge theme in favor of full screen
  settings for O.
- Update font/dize preview text color to match light background

Bug: 33558692
Test: visual

Change-Id: Id8704c96e2ce35247e80e50eefd531786479b193
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index b14856c..cb20622 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -166,11 +166,11 @@
                 android:parentActivityName="Settings">
         </activity>
 
-        <activity android:name="CreateShortcut" android:label="@string/settings_shortcut"
-            android:theme="@style/Theme.SubSettingsDialogWhenLarge">
+        <activity android:name="CreateShortcut"
+                  android:label="@string/settings_shortcut">
             <intent-filter>
-                <action android:name="android.intent.action.CREATE_SHORTCUT" />
-                <category android:name="android.intent.category.DEFAULT" />
+                <action android:name="android.intent.action.CREATE_SHORTCUT"/>
+                <category android:name="android.intent.category.DEFAULT"/>
             </intent-filter>
         </activity>
 
@@ -341,7 +341,6 @@
         </activity>
 
         <activity android:name=".Settings$WifiInfoActivity"
-                android:theme="@style/Theme.SubSettingsDialogWhenLarge"
                 android:taskAffinity="com.android.settings"
                 android:parentActivityName="Settings$WifiSettingsActivity">
             <intent-filter>
@@ -354,7 +353,6 @@
         </activity>
 
         <activity android:name=".wifi.WifiConfigInfo"
-                android:theme="@style/Theme.SubSettingsDialogWhenLarge"
                 android:taskAffinity="com.android.settings"
                 android:parentActivityName="Settings$WifiSettingsActivity">
             <intent-filter>
@@ -364,8 +362,7 @@
             </intent-filter>
         </activity>
 
-        <activity android:name=".Settings$WifiAPITestActivity"
-                android:theme="@style/Theme.SubSettingsDialogWhenLarge">
+        <activity android:name=".Settings$WifiAPITestActivity">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN"/>
                 <category android:name="android.intent.category.DEVELOPMENT_PREFERENCE" />
@@ -375,8 +372,7 @@
                        android:value="com.android.settings.wifi.WifiAPITest" />
         </activity>
 
-        <activity android:name=".wifi.WifiStatusTest"
-                android:theme="@style/Theme.SubSettingsDialogWhenLarge">
+        <activity android:name=".wifi.WifiStatusTest">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN"/>
                 <category android:name="android.intent.category.DEVELOPMENT_PREFERENCE" />
@@ -460,7 +456,6 @@
         </activity-alias>
 
         <activity android:name=".bluetooth.DevicePickerActivity"
-                android:theme="@style/Theme.SubSettingsDialogWhenLarge"
                 android:label="@string/device_picker"
                 android:clearTaskOnLaunch="true">
             <intent-filter>
@@ -966,7 +961,6 @@
         </activity>
 
         <activity android:name="Settings$DeviceInfoSettingsActivity"
-                android:theme="@style/Theme.SubSettingsDialogWhenLarge"
                 android:label="@string/device_info_settings"
                 android:icon="@drawable/ic_settings_about"
                 android:taskAffinity="com.android.settings"
@@ -1391,7 +1385,6 @@
         </activity>
 
         <activity android:name="SetFullBackupPassword"
-                android:theme="@style/Theme.SubSettingsDialogWhenLarge"
                 android:exported="false">
         </activity>
 
@@ -1431,7 +1424,6 @@
 
         <activity android:name="DeviceAdminAdd"
                 android:label="@string/device_admin_add_title"
-                android:theme="@style/Theme.SubSettingsDialogWhenLarge"
                 android:clearTaskOnLaunch="true">
             <intent-filter>
                 <action android:name="android.app.action.ADD_DEVICE_ADMIN" />
@@ -1466,7 +1458,6 @@
 
         <activity android:name="Settings$IccLockSettingsActivity"
                 android:label="@string/sim_lock_settings"
-                android:theme="@style/Theme.SubSettingsDialogWhenLarge"
                 android:process="com.android.phone">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
@@ -1788,7 +1779,6 @@
 
         <activity android:name=".Settings$StatusActivity"
                 android:label="@string/device_status_activity_title"
-                android:theme="@style/Theme.SubSettingsDialogWhenLarge"
                 android:taskAffinity="com.android.settings"
                 android:parentActivityName="Settings$DeviceInfoSettingsActivity">
             <intent-filter>
@@ -1803,7 +1793,6 @@
         <!-- Runs in the phone process since it needs access to the Phone object -->
         <activity android:name=".Settings$SimStatusActivity"
                 android:label="@string/sim_status_title"
-                android:theme="@style/Theme.SubSettingsDialogWhenLarge"
                 android:process="com.android.phone">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
@@ -1817,7 +1806,6 @@
         <!-- Runs in the phone process since it needs access to the Phone object -->
         <activity android:name=".Settings$ImeiInformationActivity"
                 android:label="@string/imei_information_title"
-                android:theme="@style/Theme.SubSettingsDialogWhenLarge"
                 android:process="com.android.phone">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
@@ -2371,8 +2359,7 @@
 
         <activity android:name="Settings$ChooseAccountActivity"
             android:label="@string/header_add_an_account"
-            android:configChanges="orientation|keyboardHidden|screenSize"
-            android:theme="@style/Theme.SubSettingsDialogWhenLarge">
+            android:configChanges="orientation|keyboardHidden|screenSize">
             <meta-data android:name="com.android.settings.FRAGMENT_CLASS"
                        android:value="com.android.settings.accounts.ChooseAccountActivity" />
         </activity>
diff --git a/res/layout/preview_seek_bar_view_pager.xml b/res/layout/preview_seek_bar_view_pager.xml
index e5dfa94..5eb3543 100644
--- a/res/layout/preview_seek_bar_view_pager.xml
+++ b/res/layout/preview_seek_bar_view_pager.xml
@@ -37,7 +37,6 @@
         android:gravity="start|center"
         android:text="@string/screen_zoom_preview_title"
         android:textAppearance="@android:style/TextAppearance.Material.Widget.ActionBar.Title"
-        android:textColor="@color/seek_bar_preference_preview_text"
         android:importantForAccessibility="no" />
 </LinearLayout>
 
diff --git a/res/values/colors.xml b/res/values/colors.xml
index 38eb74b..300d73a 100644
--- a/res/values/colors.xml
+++ b/res/values/colors.xml
@@ -99,8 +99,6 @@
     <color name="message_icon_background_outgoing">#4285f4</color>
     <color name="message_icon_text_outgoing">#ffffffff</color>
 
-    <color name="seek_bar_preference_preview_text">#fff</color>
-
     <color name="importance_disabled_slider_color">@*android:color/material_grey_300</color>
     <color name="importance_secondary_slider_color">#858383</color>
 
diff --git a/res/values/themes.xml b/res/values/themes.xml
index 0241e1a..fe5b3ca 100644
--- a/res/values/themes.xml
+++ b/res/values/themes.xml
@@ -195,13 +195,6 @@
         <item name="switchBarBackgroundColor">?android:attr/colorSecondary</item>
     </style>
 
-    <style name="Theme.DialogWhenLarge" parent="@*android:style/Theme.DeviceDefault.Settings.DialogWhenLarge">
-        <!-- Redefine the ActionBar style for contentInsetStart -->
-        <item name="android:actionBarStyle">@style/Theme.ActionBar</item>
-
-        <item name="preferenceBackgroundColor">@drawable/preference_background</item>
-    </style>
-
     <style name="Theme.CryptKeeper" parent="@android:style/Theme.Material.NoActionBar">
         <item name="android:windowTranslucentStatus">false</item>
         <item name="android:windowTranslucentNavigation">false</item>
@@ -214,13 +207,6 @@
         <item name="*android:errorColor">@color/unlock_pattern_view_error_color</item>
     </style>
 
-    <style name="Theme.SubSettingsDialogWhenLarge" parent="Theme.DialogWhenLarge">
-        <item name="preferenceTheme">@style/PreferenceTheme</item>
-        <item name="android:actionBarWidgetTheme">@null</item>
-        <item name="android:actionBarTheme">@android:style/ThemeOverlay.Material.ActionBar</item>
-        <item name="preferenceBackgroundColor">@drawable/preference_background</item>
-    </style>
-
     <style name="ThemeOverlay.AlertDialog" parent="@android:style/ThemeOverlay.Material.Dialog.Alert">
         <item name="android:windowSoftInputMode">adjustResize</item>
     </style>
@@ -241,6 +227,7 @@
     </style>
 
     <style name="Theme.ConfirmDeviceCredentials" parent="Theme.SubSettings">
+        <item name="android:windowLightStatusBar">false</item>
         <item name="confirmDeviceCredentialsSideMargin">@dimen/confirm_credentials_side_margin</item>
         <item name="confirmDeviceCredentialsTopMargin">@dimen/confirm_credentials_top_margin</item>
     </style>
diff --git a/src/com/android/settings/SettingsActivity.java b/src/com/android/settings/SettingsActivity.java
index 13bc048..c01e4c4 100644
--- a/src/com/android/settings/SettingsActivity.java
+++ b/src/com/android/settings/SettingsActivity.java
@@ -387,14 +387,10 @@
         final boolean isSubSettings = this instanceof SubSettings ||
                 intent.getBooleanExtra(EXTRA_SHOW_FRAGMENT_AS_SUBSETTING, false);
 
-        // If this is a sub settings, then apply the SubSettings Theme for the ActionBar content insets
+        // If this is a sub settings, then apply the SubSettings Theme for the ActionBar content
+        // insets
         if (isSubSettings) {
-            // Check also that we are not a Theme Dialog as we don't want to override them
-            final int themeResId = getThemeResId();
-            if (themeResId != R.style.Theme_DialogWhenLarge &&
-                    themeResId != R.style.Theme_SubSettingsDialogWhenLarge) {
-                setTheme(R.style.Theme_SubSettings);
-            }
+            setTheme(R.style.Theme_SubSettings);
         }
 
         setContentView(mIsShowingDashboard ?