Increase gradient of suggestion bar

bug: 3001007
Change-Id: I0f05d62b2a6848f37975b7a15b3ba14a90776d24
diff --git a/java/res/layout/candidates.xml b/java/res/layout/candidates.xml
index 478e20b..b89d442 100644
--- a/java/res/layout/candidates.xml
+++ b/java/res/layout/candidates.xml
@@ -31,6 +31,8 @@
         android:layout_width="wrap_content"
         android:layout_height="@dimen/candidate_strip_height"
         android:layout_weight="1"
+        android:fadingEdge="horizontal"
+        android:fadingEdgeLength="@dimen/candidate_strip_fading_edge_length"
         />
         
 </LinearLayout>