Fix cropped floating gesture candidate window

ash/root_window_controller.cc

 // Copyright (c) 2012 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/root_window_controller.h"
 
 #include <queue>
 #include <vector>
 
 #include "ash/ash_constants.h"
@@ skipping 660 matching lines @@
     keyboard_controller->RemoveObserver(docked_layout_manager_);
     keyboard_controller->RemoveObserver(
         workspace_controller_->layout_manager());
     keyboard_controller->RemoveObserver(
         always_on_top_controller_->GetLayoutManager());
     Shell::GetInstance()->delegate()->VirtualKeyboardActivated(false);
   }
 }
 
 bool RootWindowController::IsVirtualKeyboardWindow(aura::Window* window) {
-  aura::Window* parent = GetContainer(kShellWindowId_ImeWindowParentContainer);
+  aura::Window* parent = GetContainer(kShellWindowId_VirtualKeyboardContainer);

[sadrul, 2015/09/14 20:28:09]

It's unclear to me if this can break existing code that makes incorrect
assumptions about vk-window and ime-candidate windows. So this can possibly be a
separate CL, so that it can be reverted if something breaks.

[bshe, 2015/09/15 13:09:33]

make sense. reverted it in this CL and will upload a separate CL. 

   return parent ? parent->Contains(window) : false;
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // RootWindowController, private:
 
 RootWindowController::RootWindowController(AshWindowTreeHost* ash_host)
     : ash_host_(ash_host),
       root_window_layout_(NULL),
       docked_layout_manager_(NULL),
@@ skipping 367 matching lines @@
   else
     DisableTouchHudProjection();
 }
 
 RootWindowController* GetRootWindowController(
     const aura::Window* root_window) {
   return root_window ? GetRootWindowSettings(root_window)->controller : NULL;
 }
 
 }  // namespace ash