Add ink drop ripple to overview mode button

ash/common/system/chromeos/ime_menu/ime_menu_tray.cc

Index: ash/common/system/chromeos/ime_menu/ime_menu_tray.cc
diff --git a/ash/common/system/chromeos/ime_menu/ime_menu_tray.cc b/ash/common/system/chromeos/ime_menu/ime_menu_tray.cc
index f90ccbb6a85fee19fa1e59d276c4a45a2cf2c7cf..c4e72668cb49ee4b1488e0d313b5a77e69252e68 100644
--- a/ash/common/system/chromeos/ime_menu/ime_menu_tray.cc
+++ b/ash/common/system/chromeos/ime_menu/ime_menu_tray.cc
@@ -319,7 +319,7 @@ ImeMenuTray::ImeMenuTray(WmShelf* wm_shelf)
       should_block_shelf_auto_hide_(false) {
   SetupLabelForTray(label_);
   tray_container()->AddChildView(label_);
-  SetContentsBackground();
+  SetContentsBackground(true);
   WmShell::Get()->system_tray_notifier()->AddIMEObserver(this);
 }
 
@@ -392,13 +392,13 @@ void ImeMenuTray::ShowImeMenuBubble() {
   }
 
   bubble_.reset(new TrayBubbleWrapper(this, bubble_view));
-  SetDrawBackgroundAsActive(true);
+  SetIsActive(true);
 }
 
 void ImeMenuTray::HideImeMenuBubble() {
   bubble_.reset();
   ime_list_view_ = nullptr;
-  SetDrawBackgroundAsActive(false);
+  SetIsActive(false);
   should_block_shelf_auto_hide_ = false;
   shelf()->UpdateAutoHideState();
 }