Set status tray height to 37px on login screen

ash/shelf/shelf_layout_manager_unittest.cc

Index: ash/shelf/shelf_layout_manager_unittest.cc
diff --git a/ash/shelf/shelf_layout_manager_unittest.cc b/ash/shelf/shelf_layout_manager_unittest.cc
index d3e5f95b170f2825805e3ed934078f0464dc5bb0..67a216180b95dcf573dc7b8e2b1ee037ba02b9fd 100644
--- a/ash/shelf/shelf_layout_manager_unittest.cc
+++ b/ash/shelf/shelf_layout_manager_unittest.cc
@@ -1891,11 +1891,8 @@ TEST_F(ShelfLayoutManagerTest, StatusAreaHitBoxCoversEdge) {
   GetPrimaryShelf()->SetAlignment(SHELF_ALIGNMENT_BOTTOM);
   generator.MoveMouseTo(inset_display_bounds.bottom_right());
   EXPECT_FALSE(status_area_widget->IsMessageBubbleShown());
-#if !defined(OS_WIN)

[Mr4D (OOO till 08-26), 2016/09/29 08:24:52]

Did you test this on (MS) Windows? Are you sure this works?

[yoshiki, 2016/09/29 08:29:40]

I didn't test it locally but tested on trybot. This test was failed on trybot
without this patch. 

   generator.ClickLeftButton();
-  // The bottom right pixel doesn't work on Windows; see crbug.com/633434
   EXPECT_TRUE(status_area_widget->IsMessageBubbleShown());
-#endif
   generator.ClickLeftButton();
   EXPECT_FALSE(status_area_widget->IsMessageBubbleShown());
 
@@ -1903,11 +1900,8 @@ TEST_F(ShelfLayoutManagerTest, StatusAreaHitBoxCoversEdge) {
   GetPrimaryShelf()->SetAlignment(SHELF_ALIGNMENT_RIGHT);
   generator.MoveMouseTo(inset_display_bounds.bottom_right());
   EXPECT_FALSE(status_area_widget->IsMessageBubbleShown());
-#if !defined(OS_WIN)
   generator.ClickLeftButton();
-  // The bottom right pixel doesn't work on Windows; see crbug.com/633434
   EXPECT_TRUE(status_area_widget->IsMessageBubbleShown());
-#endif
   generator.ClickLeftButton();
   EXPECT_FALSE(status_area_widget->IsMessageBubbleShown());