Fix the full screen switching browser window dipping below launcher bar issue.

ash/wm/workspace/workspace_manager_unittest.cc

 // Copyright (c) 2012 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/wm/workspace/workspace_manager.h"
 
 #include "ash/shell.h"
 #include "ash/shell_window_ids.h"
 #include "ash/test/ash_test_base.h"
 #include "ash/wm/activation_controller.h"
@@ skipping 141 matching lines @@
 
   // Should be 1 workspace, TYPE_NORMAL with w1.
   ASSERT_EQ(1u, workspaces().size());
   EXPECT_EQ(Workspace::TYPE_MANAGED, workspaces()[0]->type());
   ASSERT_EQ(1u, workspaces()[0]->windows().size());
   EXPECT_EQ(w1.get(), workspaces()[0]->windows()[0]);
   EXPECT_EQ(250, w1->bounds().width());
   EXPECT_EQ(251, w1->bounds().height());
 }
 
+// Assertions around maximized window resizing on work area insets change.
+TEST_F(WorkspaceManagerTest, ResizeMaximizedWindowOnWorkAreaInsetsChange) {
+  scoped_ptr<Window> w1(CreateTestWindow());
+  w1->SetBounds(gfx::Rect(0, 0, 250, 251));
+
+  ASSERT_TRUE(manager_->IsManagedWindow(w1.get()));
+
+  w1->Show();
+
+  ASSERT_TRUE(w1->layer() != NULL);
+  EXPECT_TRUE(w1->layer()->visible());
+
+  EXPECT_EQ(250, w1->bounds().width());
+  EXPECT_EQ(251, w1->bounds().height());
+
+  // Maximize the window.
+  Shell::GetRootWindow()->SetScreenWorkAreaInsets(
+        gfx::Insets(0, 0, 30, 0));
+  w1->SetProperty(aura::client::kShowStateKey, ui::SHOW_STATE_MAXIMIZED);
+
+  // Should be 1 workspace, TYPE_MAXIMIZED with w1, fills the work area bounds.
+  ASSERT_EQ(1u, workspaces().size());
+  EXPECT_EQ(Workspace::TYPE_MAXIMIZED, workspaces()[0]->type());
+  ASSERT_EQ(1u, workspaces()[0]->windows().size());
+  EXPECT_EQ(w1.get(), workspaces()[0]->windows()[0]);
+  EXPECT_EQ(GetWorkAreaBounds().width(), w1->bounds().width());
+  EXPECT_EQ(GetWorkAreaBounds().height(), w1->bounds().height());
+
+  // Change work area insets.
+  Shell::GetRootWindow()->SetScreenWorkAreaInsets(
+        gfx::Insets(0, 0, 60, 0));
+
+  // Should be 1 workspace, TYPE_MAXIMIZED with w1, fills the changed work
+  // area bounds.
+  ASSERT_EQ(1u, workspaces().size());
+  EXPECT_EQ(Workspace::TYPE_MAXIMIZED, workspaces()[0]->type());
+  ASSERT_EQ(1u, workspaces()[0]->windows().size());
+  EXPECT_EQ(w1.get(), workspaces()[0]->windows()[0]);
+  EXPECT_EQ(GetWorkAreaBounds().width(), w1->bounds().width());
+  EXPECT_EQ(GetWorkAreaBounds().height(), w1->bounds().height());
+}
+
 // Assertions around closing the last window in a workspace.
 TEST_F(WorkspaceManagerTest, CloseLastWindowInWorkspace) {
   scoped_ptr<Window> w1(CreateTestWindow());
   scoped_ptr<Window> w2(CreateTestWindow());
   w1->SetBounds(gfx::Rect(0, 0, 250, 251));
   w1->Show();
   w2->SetProperty(aura::client::kShowStateKey, ui::SHOW_STATE_MAXIMIZED);
   w2->Show();
 
   // Should be 2 workspaces, TYPE_NORMAL with w1, and TYPE_MAXIMIZED with w2.
@@ skipping 198 matching lines @@
   EXPECT_TRUE(w3->layer()->IsDrawn());
 
   w1->Show();
   EXPECT_TRUE(w1->layer()->IsDrawn());
   EXPECT_FALSE(w2->layer()->IsDrawn());
   EXPECT_FALSE(w3->layer()->IsDrawn());
 }
 
 }  // namespace internal
 }  // namespace ash