Increase gradient of suggestion bar

bug: 3001007
Change-Id: I0f05d62b2a6848f37975b7a15b3ba14a90776d24

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>

java/res/values-land/dimens.xml

@@ -21,6 +21,7 @@
 <resources>
     <dimen name="key_height">47dip</dimen>
     <dimen name="candidate_strip_height">38dip</dimen>
+    <dimen name="candidate_strip_fading_edge_length">63dip</dimen>
     <dimen name="spacebar_vertical_correction">2dip</dimen>
     <!-- Amount of allowance for selecting keys in a mini popup keyboard by sliding finger. -->
     <!-- key_height * 1.7 -->

java/res/values/dimens.xml

@@ -22,6 +22,7 @@
     <dimen name="key_height">54dip</dimen>
     <dimen name="bubble_pointer_offset">22dip</dimen>
     <dimen name="candidate_strip_height">42dip</dimen>
+    <dimen name="candidate_strip_fading_edge_length">63dip</dimen>
     <dimen name="spacebar_vertical_correction">4dip</dimen>
     <!-- If the screen height in landscape is larger than the below value, then the keyboard
          will not go into extract (fullscreen) mode. -->

java/src/com/android/inputmethod/latin/CandidateView.java

@@ -186,7 +186,6 @@ public class CandidateView extends View {
                 return true;
             }
         });
-        setHorizontalFadingEdgeEnabled(true);
         setWillNotDraw(false);
         setHorizontalScrollBarEnabled(false);
         setVerticalScrollBarEnabled(false);