Add brightness/grayscale animations and use them for OOBE boot transition

ash/wm/window_animations_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/window_animations.h"
 
 #include "ash/shell_window_ids.h"
 #include "ash/test/ash_test_base.h"
 #include "base/time.h"
 #include "ui/aura/test/test_windows.h"
@@ skipping 79 matching lines @@
   ui::AnimationContainerElement* element =
       static_cast<ui::AnimationContainerElement*>(
       window->layer()->GetAnimator());
   element->Step(base::TimeTicks::Now() +
                 base::TimeDelta::FromSeconds(5));
   EXPECT_EQ(0.0f, window->layer()->GetTargetOpacity());
   EXPECT_FALSE(window->layer()->GetTargetVisibility());
   EXPECT_FALSE(window->layer()->visible());
 }
 
+TEST_F(WindowAnimationsTest, HideShowBrightnessGrayscaleAnimation) {
+  aura::Window* default_container =
+      ash::Shell::GetContainer(
+          Shell::GetPrimaryRootWindow(),
+          internal::kShellWindowId_DefaultContainer);
+  scoped_ptr<aura::Window> window(
+      aura::test::CreateTestWindowWithId(0, default_container));
+  window->Show();
+  EXPECT_TRUE(window->layer()->visible());
+
+  // Hiding.
+  SetWindowVisibilityAnimationType(
+      window.get(),
+      WINDOW_VISIBILITY_ANIMATION_TYPE_BRIGHTNESS_GRAYSCALE);
+  ash::internal::AnimateOnChildWindowVisibilityChanged(
+      window.get(), false);
+  EXPECT_EQ(0.0f, window->layer()->GetTargetOpacity());
+  EXPECT_FALSE(window->layer()->GetTargetVisibility());
+  EXPECT_FALSE(window->layer()->visible());
+
+  // Showing.
+  SetWindowVisibilityAnimationType(
+      window.get(),
+      WINDOW_VISIBILITY_ANIMATION_TYPE_BRIGHTNESS_GRAYSCALE);
+  ash::internal::AnimateOnChildWindowVisibilityChanged(
+      window.get(), true);
+  EXPECT_EQ(0.0f, window->layer()->GetTargetBrightness());
+  EXPECT_EQ(0.0f, window->layer()->GetTargetGrayscale());
+  EXPECT_TRUE(window->layer()->visible());
+
+  // Stays shown.
+  ui::AnimationContainerElement* element =
+      static_cast<ui::AnimationContainerElement*>(
+      window->layer()->GetAnimator());
+  element->Step(base::TimeTicks::Now() +
+                base::TimeDelta::FromSeconds(5));
+  EXPECT_EQ(0.0f, window->layer()->GetTargetBrightness());
+  EXPECT_EQ(0.0f, window->layer()->GetTargetGrayscale());
+  EXPECT_TRUE(window->layer()->visible());
+}
+
 TEST_F(WindowAnimationsTest, LayerTargetVisibility) {
   aura::Window* default_container =
       ash::Shell::GetContainer(
           Shell::GetPrimaryRootWindow(),
           internal::kShellWindowId_DefaultContainer);
   scoped_ptr<aura::Window> window(
       aura::test::CreateTestWindowWithId(0, default_container));
 
   // Layer target visibility changes according to Show/Hide.
   window->Show();
@@ skipping 84 matching lines @@
   // Medium changes take medium time.
   gfx::Rect half_screen(10, 10, 500, 250);
   EXPECT_EQ(kMinimum + kRange * 3 / 4,
             GetCrossFadeDuration(half_screen, screen).InMilliseconds());
   EXPECT_EQ(kMinimum + kRange * 3 / 4,
             GetCrossFadeDuration(screen, half_screen).InMilliseconds());
 }
 
 }  // namespace internal
 }  // namespace ash