Have Notifications appear over docked windows

ash/system/web_notification/ash_popup_alignment_delegate_unittest.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ash/system/web_notification/ash_popup_alignment_delegate.h"
 
 #include <vector>
 
 #include "ash/display/display_manager.h"
 #include "ash/shelf/shelf_layout_manager.h"
@@ skipping 142 matching lines @@
   int origin_x = alignment_delegate()->GetToastOriginX(toast_size);
   int baseline = alignment_delegate()->GetBaseLine();
 
   scoped_ptr<aura::Window> window(
       CreateTestWindowInShellWithBounds(gfx::Rect(0, 0, 50, 50)));
   aura::Window* docked_container = Shell::GetContainer(
       Shell::GetPrimaryRootWindow(),
       kShellWindowId_DockedContainer);
   docked_container->AddChild(window.get());
 
+  // Left-side dock should not affect popup alignment
   EXPECT_EQ(origin_x, alignment_delegate()->GetToastOriginX(toast_size));
   EXPECT_EQ(baseline, alignment_delegate()->GetBaseLine());
   EXPECT_FALSE(alignment_delegate()->IsTopDown());
+  EXPECT_FALSE(alignment_delegate()->IsFromLeft());
+
+  // Force dock to right-side
+  Shell::GetInstance()->SetShelfAlignment(SHELF_ALIGNMENT_LEFT,
+                                          Shell::GetPrimaryRootWindow());
+  Shell::GetInstance()->SetShelfAlignment(SHELF_ALIGNMENT_BOTTOM,
+                                          Shell::GetPrimaryRootWindow());
+
+  // Right-side dock should not affect popup alignment
+  EXPECT_EQ(origin_x, alignment_delegate()->GetToastOriginX(toast_size));
+  EXPECT_EQ(baseline, alignment_delegate()->GetBaseLine());
+  EXPECT_FALSE(alignment_delegate()->IsTopDown());
   EXPECT_FALSE(alignment_delegate()->IsFromLeft());
 }
 
 TEST_F(AshPopupAlignmentDelegateTest, DisplayResize) {
   const gfx::Rect toast_size(0, 0, 10, 10);
   UpdateDisplay("600x600");
   int origin_x = alignment_delegate()->GetToastOriginX(toast_size);
   int baseline = alignment_delegate()->GetBaseLine();
 
   UpdateDisplay("800x800");
@@ skipping 36 matching lines @@
 
   const int kTrayHeight = 100;
   alignment_delegate()->SetSystemTrayHeight(kTrayHeight);
 
   EXPECT_EQ(origin_x, alignment_delegate()->GetToastOriginX(toast_size));
   EXPECT_EQ(baseline - kTrayHeight - message_center::kMarginBetweenItems,
             alignment_delegate()->GetBaseLine());
 }
 
 }  // namespace ash