Add ink drop ripple to overview mode button

ash/common/system/chromeos/virtual_keyboard/virtual_keyboard_tray.cc

Index: ash/common/system/chromeos/virtual_keyboard/virtual_keyboard_tray.cc
diff --git a/ash/common/system/chromeos/virtual_keyboard/virtual_keyboard_tray.cc b/ash/common/system/chromeos/virtual_keyboard/virtual_keyboard_tray.cc
index ab969c45a89937a91d40c141e237906aeae9b200..654e1db845e01ce3b9b94254e3c1cc7f5a9bce6e 100644
--- a/ash/common/system/chromeos/virtual_keyboard/virtual_keyboard_tray.cc
+++ b/ash/common/system/chromeos/virtual_keyboard/virtual_keyboard_tray.cc
@@ -41,7 +41,7 @@ VirtualKeyboardTray::VirtualKeyboardTray(WmShelf* wm_shelf)
 
   SetIconBorderForShelfAlignment();
   tray_container()->AddChildView(icon_);
-  SetContentsBackground();
+  SetContentsBackground(true);
   // The Shell may not exist in some unit tests.
   if (WmShell::HasInstance())
     WmShell::Get()->keyboard_ui()->AddObserver(this);
@@ -94,7 +94,7 @@ void VirtualKeyboardTray::OnKeyboardEnabledStateChanged(bool new_enabled) {
 
 void VirtualKeyboardTray::OnKeyboardBoundsChanging(
     const gfx::Rect& new_bounds) {
-  SetDrawBackgroundAsActive(!new_bounds.IsEmpty());
+  SetIsActive(!new_bounds.IsEmpty());
 }
 
 void VirtualKeyboardTray::OnKeyboardClosed() {}