Update last few users of deprecated CreateShadowDrawLooper and remove

ash/common/system/tray/tray_details_view.cc

Index: ash/common/system/tray/tray_details_view.cc
diff --git a/ash/common/system/tray/tray_details_view.cc b/ash/common/system/tray/tray_details_view.cc
index a99790f9b7d20e97c916412c0dc35bce2b83bfce..a365c0cc03925aba4034e213680909c15f727a19 100644
--- a/ash/common/system/tray/tray_details_view.cc
+++ b/ash/common/system/tray/tray_details_view.cc
@@ -217,7 +217,7 @@ class ScrollContentsView : public views::View {
     gfx::ShadowValues shadow;
     shadow.emplace_back(gfx::Vector2d(0, kShadowOffsetY), kShadowBlur,
                         kMenuSeparatorColor);
-    flags.setLooper(gfx::CreateShadowDrawLooperCorrectBlur(shadow));
+    flags.setLooper(gfx::CreateShadowDrawLooper(shadow));
     flags.setAntiAlias(true);
     canvas->ClipRect(shadowed_area, SkClipOp::kDifference);
     canvas->DrawRect(shadowed_area, flags);