Add window states docked; and docked minimized. Add wm window event to set docked and undocked.

ash/wm/dock/docked_window_resizer_unittest.cc

 // Copyright (c) 2013 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/dock/docked_window_resizer.h"
 
 #include "ash/ash_switches.h"
 #include "ash/root_window_controller.h"
 #include "ash/screen_util.h"
 #include "ash/shelf/shelf.h"
@@ skipping 491 matching lines @@
   wm::WindowState* window_state = wm::GetWindowState(window.get());
   // Minimize the window, it should be hidden.
   window_state->Minimize();
   RunAllPendingInMessageLoop();
   EXPECT_FALSE(window->IsVisible());
   EXPECT_TRUE(window_state->IsMinimized());
   // Restore the window; window should be visible.
   window_state->Restore();
   RunAllPendingInMessageLoop();
   EXPECT_TRUE(window->IsVisible());
-  EXPECT_TRUE(window_state->IsNormalStateType());
+  EXPECT_TRUE(window_state->IsDocked());
 }
 
 // Maximize a docked window and check that it is maximized and no longer docked.
 TEST_P(DockedWindowResizerTest, AttachMaximize) {
   if (!SupportsHostWindowResize())
     return;
 
   scoped_ptr<aura::Window> window(CreateTestWindow(gfx::Rect(0, 0, 201, 201)));
   DragRelativeToEdge(DOCKED_EDGE_RIGHT, window.get(), 0);
 
@@ skipping 1081 matching lines @@
   EXPECT_TRUE(window_state->IsMaximized());
 }
 
 // Tests run twice - on both panels and normal windows
 INSTANTIATE_TEST_CASE_P(NormalOrPanel,
                         DockedWindowResizerTest,
                         testing::Values(ui::wm::WINDOW_TYPE_NORMAL,
                                         ui::wm::WINDOW_TYPE_PANEL));
 
 }  // namespace ash