Add ink drop ripple to overview mode button

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

 // Copyright 2016 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/chromeos/ime_menu/ime_menu_tray.h"
 
 #include "ash/common/accessibility_delegate.h"

[tdanderson, 2016/11/12 02:18:58]

nit: can you please include a CL description that gives a brief overview of the
changes made in the CL? It is helpful as an introduction for those reading the
code so they know what to look out for.

[mohsen, 2016/11/13 05:10:04]

Done.

 #include "ash/common/ash_constants.h"
 #include "ash/common/material_design/material_design_controller.h"
 #include "ash/common/session/session_state_delegate.h"
 #include "ash/common/shelf/wm_shelf.h"
 #include "ash/common/shelf/wm_shelf_util.h"
 #include "ash/common/system/chromeos/ime_menu/ime_list_view.h"
 #include "ash/common/system/tray/fixed_sized_scroll_view.h"
 #include "ash/common/system/tray/hover_highlight_view.h"
 #include "ash/common/system/tray/system_menu_button.h"
 #include "ash/common/system/tray/system_tray_controller.h"
@@ skipping 294 matching lines @@
 }  // namespace
 
 ImeMenuTray::ImeMenuTray(WmShelf* wm_shelf)
     : TrayBackgroundView(wm_shelf),
       label_(new ImeMenuLabel()),
       show_keyboard_(false),
       force_show_keyboard_(false),
       should_block_shelf_auto_hide_(false) {
   SetupLabelForTray(label_);
   tray_container()->AddChildView(label_);
-  SetContentsBackground();
+  SetContentsBackground(true);
   WmShell::Get()->system_tray_notifier()->AddIMEObserver(this);
 }
 
 ImeMenuTray::~ImeMenuTray() {
   if (bubble_)
     bubble_->bubble_view()->reset_delegate();
   WmShell::Get()->system_tray_notifier()->RemoveIMEObserver(this);
 }
 
 void ImeMenuTray::ShowImeMenuBubble() {
@@ skipping 52 matching lines @@
           new ImeButtonsView(this, true, true, true, true));
     } else if (!MaterialDesignController::IsSystemTrayMenuMaterial()) {
       // For MD, we don't need |ImeButtonsView| as the settings button will be
       // shown in the title row.
       bubble_view->AddChildView(
           new ImeButtonsView(this, false, false, false, true));
     }
   }
 
   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();
 }
 
 bool ImeMenuTray::IsImeMenuBubbleShown() {
   return !!bubble_;
 }
 
 void ImeMenuTray::ShowKeyboardWithKeyset(const std::string& keyset) {
   HideImeMenuBubble();
@@ skipping 171 matching lines @@
   WmShell::Get()->system_tray_delegate()->GetCurrentIME(&current_ime_);
 
   // Updates the tray label based on the current input method.
   if (current_ime_.third_party)
     label_->SetText(current_ime_.short_name + base::UTF8ToUTF16("*"));
   else
     label_->SetText(current_ime_.short_name);
 }
 
 }  // namespace ash