Update shelf spacing in Chrome OS according to the MD specs

ash/system/toast/toast_manager_unittest.cc

Index: ash/system/toast/toast_manager_unittest.cc
diff --git a/ash/system/toast/toast_manager_unittest.cc b/ash/system/toast/toast_manager_unittest.cc
index e6d7556d57314360c38ac1fb8988f72d1e2a3315..b42ab0dff40f21c2c0a156d682157d387f3931ed 100644
--- a/ash/system/toast/toast_manager_unittest.cc
+++ b/ash/system/toast/toast_manager_unittest.cc
@@ -5,6 +5,7 @@
 #include "ash/display/display_manager.h"
 #include "ash/screen_util.h"
 #include "ash/shelf/shelf.h"
+#include "ash/shelf/shelf_constants.h"

[tdanderson, 2016/06/10 22:54:43]

file moved to ash/common

[yiyix, 2016/06/13 18:43:55]

Done.

 #include "ash/shelf/shelf_layout_manager.h"
 #include "ash/shell.h"
 #include "ash/system/toast/toast_manager.h"
@@ -196,7 +197,7 @@ TEST_F(ToastManagerTest, PositionWithAutoHiddenBottomShelf) {
 
   EXPECT_TRUE(toast_bounds.Intersects(shelf->user_work_area_bounds()));
   EXPECT_NEAR(root_bounds.CenterPoint().x(), toast_bounds.CenterPoint().x(), 1);
-  EXPECT_EQ(root_bounds.bottom() - ShelfLayoutManager::kAutoHideSize - 5,
+  EXPECT_EQ(root_bounds.bottom() - kShelfAutoHideSize - 5,
             toast_bounds.bottom());
 }