Uber tray UI Polish: Adjust uber tray bubble and arrow to align it with the app list bubble.

ash/system/tray/tray_constants.cc

Index: ash/system/tray/tray_constants.cc
diff --git a/ash/system/tray/tray_constants.cc b/ash/system/tray/tray_constants.cc
index e56b045afba3c25ebbe415e7b9b09eeea379c28f..ba123cc7b2ff0e4962e421edcd8f147b6b4da808 100644
--- a/ash/system/tray/tray_constants.cc
+++ b/ash/system/tray/tray_constants.cc
@@ -9,9 +9,9 @@
 namespace ash {
 
 const int kPaddingFromRightEdgeOfScreenBottomAlignment = 15;
-const int kPaddingFromBottomOfScreenBottomAlignment = 10;
+const int kPaddingFromBottomOfScreenBottomAlignment = 9;
 const int kPaddingFromOuterEdgeOfLauncherVerticalAlignment = 8;
-const int kPaddingFromInnerEdgeOfLauncherVerticalAlignment = 7;
+const int kPaddingFromInnerEdgeOfLauncherVerticalAlignment = 9;
 const int kPaddingFromBottomOfScreenVerticalAlignment = 10;
 
 const int kTrayImageItemHorizontalPaddingBottomAlignment = 1;