app_list: Touch scroll and animation improvement.

ui/app_list/app_list_bubble_border.cc

Index: ui/app_list/app_list_bubble_border.cc
diff --git a/ui/app_list/app_list_bubble_border.cc b/ui/app_list/app_list_bubble_border.cc
index 5575f84980f064b41d07fd12dfceb4cabff3e1d2..485417921e252bb7185c560bfddab479daf42d34 100644
--- a/ui/app_list/app_list_bubble_border.cc
+++ b/ui/app_list/app_list_bubble_border.cc
@@ -14,7 +14,7 @@
 namespace {
 
 const SkColor kSearchBoxBackground = SK_ColorWHITE;
-const SkColor kContentsBackground = SkColorSetRGB(0xFC, 0xFC, 0xFC);
+const SkColor kContentsBackground = SkColorSetRGB(0xF5, 0xF5, 0xF5);
 
 // Colors and sizes of top separator between searchbox and grid view.
 const SkColor kTopSeparatorColor = SkColorSetRGB(0xF0, 0xF0, 0xF0);