Remove extension_misc::IsImeMenuExtensionId.

chrome/browser/ui/views/apps/chrome_native_app_window_views.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 "chrome/browser/ui/views/apps/chrome_native_app_window_views.h"
 
 #include <stddef.h>
 #include <utility>
 
 #include "apps/ui/views/app_window_frame_view.h"
@@ skipping 212 matching lines @@
   using BoundsSpecification = AppWindow::BoundsSpecification;
   bool position_specified =
       initial_window_bounds.x() != BoundsSpecification::kUnspecifiedPosition &&
       initial_window_bounds.y() != BoundsSpecification::kUnspecifiedPosition;
   params.bounds = (use_default_bounds || !position_specified) ?
       gfx::Rect(preferred_size_) :
       gfx::Rect(initial_window_bounds.origin(), preferred_size_);
   OnBeforePanelWidgetInit(use_default_bounds, &params, widget());
   widget()->Init(params);
   widget()->set_focus_on_creation(create_params.focused);
-#if defined(OS_CHROMEOS)
-  if (extension_misc::IsImeMenuExtensionId(app_window()->extension_id())) {
-    if (widget()->GetNativeView()) {
-      widget()->GetNativeView()->SetProperty(aura::client::kExcludeFromMruKey,

[sky, 2016/12/12 16:06:55]

Can kExcludeFromMruKey be removed now?

[Azure Wei, 2016/12/13 11:20:47]

Removed.

-                                             true);
-    }
-  }
-#endif
 }
 
 views::NonClientFrameView*
 ChromeNativeAppWindowViews::CreateStandardDesktopAppFrame() {
   return views::WidgetDelegateView::CreateNonClientFrameView(widget());
 }
 
 // ui::BaseWindow implementation.
 
 gfx::Rect ChromeNativeAppWindowViews::GetRestoredBounds() const {
@@ skipping 133 matching lines @@
     InitializePanelWindow(create_params);
   } else {
     InitializeDefaultWindow(create_params);
   }
   extension_keybinding_registry_.reset(new ExtensionKeybindingRegistryViews(
       Profile::FromBrowserContext(app_window->browser_context()),
       widget()->GetFocusManager(),
       extensions::ExtensionKeybindingRegistry::PLATFORM_APPS_ONLY,
       NULL));
 }