Add a runtime switch between Raster and Ganesh rendering modes.

There are corresponding changes in:

frameworks/base -- change ID: 120662
external/webkit -- change ID: 120660

bug: 5013645
Change-Id: Ic8dfd24786c2ecc14df840204c7a01cb0defa5e3
diff --git a/res/values/strings.xml b/res/values/strings.xml
index ee3ce95..f8beb4e 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -567,6 +567,8 @@
     <!-- Do not tranlsate.  Development option -->
     <string name="pref_development_hardware_accel" translatable="false">Enable OpenGL Rendering</string>
     <!-- Do not tranlsate.  Development option -->
+    <string name="pref_development_hardware_accel_skia" translatable="false">Enable HW Accelerated Skia</string>
+    <!-- Do not tranlsate.  Development option -->
     <string name="pref_development_visual_indicator" translatable="false">Enable Visual Indicator</string>
     <!-- Do not tranlsate.  Development option -->
     <string name="js_engine_flags" translatable="false">Set JS flags</string>
diff --git a/res/xml/debug_preferences.xml b/res/xml/debug_preferences.xml
index 1fc4f4c..2d15ab2 100644
--- a/res/xml/debug_preferences.xml
+++ b/res/xml/debug_preferences.xml
@@ -22,6 +22,11 @@
         android:defaultValue="true"
         android:title="@string/pref_development_hardware_accel" />
 
+    <CheckBoxPreference
+        android:key="enable_hardware_accel_skia"
+        android:defaultValue="false"
+        android:title="@string/pref_development_hardware_accel_skia" />
+
     <ListPreference
         android:key="user_agent"
         android:title="@string/pref_development_uastring"
@@ -29,13 +34,13 @@
         android:entryValues="@array/pref_development_ua_values"
         android:defaultValue="0"/>
 
-    <!-- The javascript console is enabled by default when the user has
-         also enabled debug mode by navigating to about:debug. -->
     <CheckBoxPreference
         android:key="enable_visual_indicator"
         android:defaultValue="false"
         android:title="@string/pref_development_visual_indicator" />
 
+    <!-- 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"