Add ink drop ripple to overview mode button

ash/common/system/tray/system_tray_unittest.cc

Index: ash/common/system/tray/system_tray_unittest.cc
diff --git a/ash/common/system/tray/system_tray_unittest.cc b/ash/common/system/tray/system_tray_unittest.cc
index b4f1bba0e4408901feb8eeb1d482e0ec1d57b87e..4e770956b1eb24781e38bcdd741039a54f5c2531 100644
--- a/ash/common/system/tray/system_tray_unittest.cc
+++ b/ash/common/system/tray/system_tray_unittest.cc
@@ -236,16 +236,16 @@ TEST_F(SystemTrayTest, SystemTrayColoring) {
   SystemTray* tray = GetPrimarySystemTray();
   ASSERT_TRUE(tray->GetWidget());
   // At the beginning the tray coloring is not active.
-  ASSERT_FALSE(tray->draw_background_as_active());
+  ASSERT_FALSE(tray->is_active());
 
   // Showing the system bubble should show the background as active.
   tray->ShowDefaultView(BUBBLE_CREATE_NEW);
-  ASSERT_TRUE(tray->draw_background_as_active());
+  ASSERT_TRUE(tray->is_active());
 
   // Closing the system menu should change the coloring back to normal.
   ASSERT_TRUE(tray->CloseSystemBubble());
   RunAllPendingInMessageLoop();
-  ASSERT_FALSE(tray->draw_background_as_active());
+  ASSERT_FALSE(tray->is_active());
 }
 
 // Closing the system bubble through an alignment change should change the
@@ -256,16 +256,16 @@ TEST_F(SystemTrayTest, SystemTrayColoringAfterAlignmentChange) {
   WmShelf* shelf = GetPrimaryShelf();
   shelf->SetAlignment(SHELF_ALIGNMENT_BOTTOM);
   // At the beginning the tray coloring is not active.
-  ASSERT_FALSE(tray->draw_background_as_active());
+  ASSERT_FALSE(tray->is_active());
 
   // Showing the system bubble should show the background as active.
   tray->ShowDefaultView(BUBBLE_CREATE_NEW);
-  ASSERT_TRUE(tray->draw_background_as_active());
+  ASSERT_TRUE(tray->is_active());
 
   // Changing the alignment should close the system bubble and change the
   // background color.
   shelf->SetAlignment(SHELF_ALIGNMENT_LEFT);
-  ASSERT_FALSE(tray->draw_background_as_active());
+  ASSERT_FALSE(tray->is_active());
   RunAllPendingInMessageLoop();
   // The bubble should already be closed by now.
   ASSERT_FALSE(tray->CloseSystemBubble());