Convert the browser settings to be fragments.

This also makes the settings panel 2 pane.

Change-Id: Ifccfdc145065fc51f12b74160c797749063b403d
diff --git a/res/xml/debug_preferences.xml b/res/xml/debug_preferences.xml
index c1ed1e6..54b2bd5 100644
--- a/res/xml/debug_preferences.xml
+++ b/res/xml/debug_preferences.xml
@@ -16,59 +16,54 @@
 
 <PreferenceScreen 
         xmlns:android="http://schemas.android.com/apk/res/android" >
-    <PreferenceCategory
-        android:title="@string/pref_development_title" 
-        android:key="debug_menu" >
 
-        <!-- The javascript console is enabled by default when the user has
-             also enabled debug mode by navigating to about:debug. -->
-        <CheckBoxPreference
-            android:key="javascript_console"
-            android:defaultValue="true"
-            android:title="@string/pref_development_error_console" />
-                        
-        <CheckBoxPreference
-            android:key="small_screen"
-            android:defaultValue="false"
-            android:title="@string/pref_development_single_column_rendering" />   
-
-        <CheckBoxPreference
-            android:key="wide_viewport"
-            android:defaultValue="true"
-            android:title="@string/pref_development_viewport" />
+    <!-- The javascript console is enabled by default when the user has
+         also enabled debug mode by navigating to about:debug. -->
+    <CheckBoxPreference
+        android:key="javascript_console"
+        android:defaultValue="true"
+        android:title="@string/pref_development_error_console" />
                     
-        <CheckBoxPreference
-            android:key="normal_layout"
-            android:defaultValue="false"
-            android:title="@string/pref_development_normal_rendering" />       
-        
-        <CheckBoxPreference
-            android:key="enable_tracing"
-            android:defaultValue="false"
-            android:title="@string/pref_development_trace" />
+    <CheckBoxPreference
+        android:key="small_screen"
+        android:defaultValue="false"
+        android:title="@string/pref_development_single_column_rendering" />   
+
+    <CheckBoxPreference
+        android:key="wide_viewport"
+        android:defaultValue="true"
+        android:title="@string/pref_development_viewport" />
+                
+    <CheckBoxPreference
+        android:key="normal_layout"
+        android:defaultValue="false"
+        android:title="@string/pref_development_normal_rendering" />       
     
-        <CheckBoxPreference
-            android:key="enable_light_touch"
-            android:defaultValue="false"
-            android:title="Enable light touch" />
+    <CheckBoxPreference
+        android:key="enable_tracing"
+        android:defaultValue="false"
+        android:title="@string/pref_development_trace" />
 
-        <CheckBoxPreference
-            android:key="enable_nav_dump"
-            android:defaultValue="false"
-            android:title="@string/pref_development_nav_dump" />
+    <CheckBoxPreference
+        android:key="enable_light_touch"
+        android:defaultValue="false"
+        android:title="Enable light touch" />
 
-        <EditTextPreference
-            android:key="js_engine_flags"
-            android:title="@string/js_engine_flags"
-            android:singleLine="true" />
+    <CheckBoxPreference
+        android:key="enable_nav_dump"
+        android:defaultValue="false"
+        android:title="@string/pref_development_nav_dump" />
 
-        <ListPreference
-            android:key="user_agent"
-            android:title="@string/pref_development_uastring"
-            android:entries="@array/pref_development_ua_choices"
-            android:entryValues="@array/pref_development_ua_values"
-            android:defaultValue="0"/>
+    <EditTextPreference
+        android:key="js_engine_flags"
+        android:title="@string/js_engine_flags"
+        android:singleLine="true" />
 
-    </PreferenceCategory>
+    <ListPreference
+        android:key="user_agent"
+        android:title="@string/pref_development_uastring"
+        android:entries="@array/pref_development_ua_choices"
+        android:entryValues="@array/pref_development_ua_values"
+        android:defaultValue="0"/>
 
 </PreferenceScreen>