Add ink drop ripple to overview mode button

ash/system/overview/overview_button_tray_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/common/system/overview/overview_button_tray.h"
 
 #include "ash/common/login_status.h"
 #include "ash/common/system/status_area_widget.h"
 #include "ash/common/test/test_session_state_delegate.h"
 #include "ash/common/wm/maximize_mode/maximize_mode_controller.h"
@@ skipping 177 matching lines @@
   NotifySessionStateChanged();
   EXPECT_TRUE(GetTray()->visible());
   WmShell::Get()->maximize_mode_controller()->EnableMaximizeModeWindowManager(
       false);
 }
 
 // Tests that the tray only renders as active while selection is ongoing. Any
 // dismissal of overview mode clears the active state.
 TEST_F(OverviewButtonTrayTest, ActiveStateOnlyDuringOverviewMode) {
   ASSERT_FALSE(WmShell::Get()->window_selector_controller()->IsSelecting());
-  ASSERT_FALSE(GetTray()->draw_background_as_active());
+  ASSERT_FALSE(GetTray()->is_active());
 
   // Overview Mode only works when there is a window
   std::unique_ptr<aura::Window> window(
       CreateTestWindowInShellWithBounds(gfx::Rect(5, 5, 20, 20)));
-  ui::GestureEvent tap(0, 0, 0, base::TimeTicks(),
-                       ui::GestureEventDetails(ui::ET_GESTURE_TAP));
-  GetTray()->PerformAction(tap);
+
+  EXPECT_TRUE(WmShell::Get()->window_selector_controller()->ToggleOverview());
   EXPECT_TRUE(WmShell::Get()->window_selector_controller()->IsSelecting());
-  EXPECT_TRUE(GetTray()->draw_background_as_active());
+  EXPECT_TRUE(GetTray()->is_active());
 
-  WmShell::Get()->window_selector_controller()->OnSelectionEnded();
+  EXPECT_TRUE(WmShell::Get()->window_selector_controller()->ToggleOverview());
   EXPECT_FALSE(WmShell::Get()->window_selector_controller()->IsSelecting());
-  EXPECT_FALSE(GetTray()->draw_background_as_active());
+  EXPECT_FALSE(GetTray()->is_active());
 }
 
 // Test that when a hide animation is aborted via deletion, that the
 // OverviewButton is still hidden.
 #if defined(OS_WIN) && !defined(USE_ASH)
 // TODO(msw): Broken on Windows. http://crbug.com/584038
 #define MAYBE_HideAnimationAlwaysCompletes DISABLED_HideAnimationAlwaysCompletes
 #else
 #define MAYBE_HideAnimationAlwaysCompletes HideAnimationAlwaysCompletes
 #endif
@@ skipping 36 matching lines @@
   ASSERT_TRUE(WmShell::Get()->IsSystemModalWindowOpen());
   WmShell::Get()->maximize_mode_controller()->EnableMaximizeModeWindowManager(
       true);
   EXPECT_TRUE(GetTray()->visible());
   WmShell::Get()->maximize_mode_controller()->EnableMaximizeModeWindowManager(
       false);
   EXPECT_FALSE(GetTray()->visible());
 }
 
 }  // namespace ash