Adds the StyleManager class.

StyleManager provides APIs for the Contacts app to retrieve icons from
third party sync adapter packages to display in the Contacts UI.
StyleManager also keeps a Cache of the requested icons in memory.
diff --git a/tests/Android.mk b/tests/Android.mk
index 47782e3..ef11c5e 100644
--- a/tests/Android.mk
+++ b/tests/Android.mk
@@ -3,7 +3,7 @@
 
 # We only want this apk build for tests.
 LOCAL_MODULE_TAGS := tests
-LOCAL_CERTIFICATE := platform
+LOCAL_CERTIFICATE := shared
 
 LOCAL_JAVA_LIBRARIES := android.test.runner