Add extra blending modes.

This change adds the following blending modes for shaders and color filters:
Add
Multiply
Screen
Overlay
Darken
Lighten

Change-Id: Iff22f5ce6041b43c71b1857d73013f5010ab3413
diff --git a/tests/HwAccelerationTest/AndroidManifest.xml b/tests/HwAccelerationTest/AndroidManifest.xml
index 90c82ee..181b4c8 100644
--- a/tests/HwAccelerationTest/AndroidManifest.xml
+++ b/tests/HwAccelerationTest/AndroidManifest.xml
@@ -180,5 +180,14 @@
             </intent-filter>
         </activity>
 
+        <activity
+                android:name="AdvancedBlendActivity"
+                android:label="_AdvancedBlend">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+
     </application>
 </manifest>