app_list: Touch scroll and animation improvement.

ui/app_list/search_result_view.cc

Index: ui/app_list/search_result_view.cc
diff --git a/ui/app_list/search_result_view.cc b/ui/app_list/search_result_view.cc
index 98f7405c380280a0e9b0c030e177b07e3690064b..55cc55809e8a1a406c99a566e8c7c15b64423ea0 100644
--- a/ui/app_list/search_result_view.cc
+++ b/ui/app_list/search_result_view.cc
@@ -38,6 +38,7 @@ const SkColor kDefaultTextColor = SkColorSetRGB(0x33, 0x33, 0x33);
 const SkColor kDimmedTextColor = SkColorSetRGB(0x96, 0x96, 0x96);
 const SkColor kURLTextColor = SkColorSetRGB(0x00, 0x99, 0x33);
 
+const SkColor kBackgroundColor = SkColorSetRGB(0xF5, 0xF5, 0xF5);
 const SkColor kSelectedBorderColor = kBorderColor;
 const SkColor kSelectedBackgroundColor = SkColorSetARGB(0x0F, 0x4D, 0x90, 0xFE);
 const SkColor kHoverAndPushedColor = SkColorSetARGB(0x05, 0, 0, 0);
@@ -189,6 +190,8 @@ void SearchResultView::OnPaint(gfx::Canvas* canvas) {
   gfx::Rect content_rect(rect);
   content_rect.set_height(rect.height() - kBorderSize);
 
+  canvas->FillRect(content_rect, kBackgroundColor);
+
   bool selected = list_view_->IsResultViewSelected(this);
   if (selected) {
     canvas->FillRect(content_rect, kSelectedBackgroundColor);