Allow component IME extension use app.window and add 'ime' window type for app 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 629 matching lines @@
     return;
   }
   DCHECK(keyboard_controller);
   if (!keyboard::IsKeyboardUsabilityExperimentEnabled()) {
     keyboard_controller->AddObserver(shelf()->shelf_layout_manager());
     keyboard_controller->AddObserver(panel_layout_manager_);
     keyboard_controller->AddObserver(docked_layout_manager_);
     keyboard_controller->AddObserver(workspace_controller_->layout_manager());
     Shell::GetInstance()->delegate()->VirtualKeyboardActivated(true);
   }
-  aura::Window* parent = GetContainer(
-      kShellWindowId_VirtualKeyboardParentContainer);
+  aura::Window* parent = GetContainer(kShellWindowId_ImeWindowParentContainer);
   DCHECK(parent);
   aura::Window* keyboard_container =
       keyboard_controller->GetContainerWindow();
   keyboard_container->set_id(kShellWindowId_VirtualKeyboardContainer);
   parent->AddChild(keyboard_container);
   // TODO(oshima): Bounds of keyboard container should be handled by
   // RootWindowLayoutManager. Remove this after fixed RootWindowLayoutManager.
   keyboard_container->SetBounds(parent->bounds());
 }
 
 void RootWindowController::DeactivateKeyboard(
     keyboard::KeyboardController* keyboard_controller) {
   if (!keyboard_controller ||
       !keyboard_controller->keyboard_container_initialized()) {
     return;
   }
   aura::Window* keyboard_container =
       keyboard_controller->GetContainerWindow();
   if (keyboard_container->GetRootWindow() == GetRootWindow()) {
     aura::Window* parent = GetContainer(
-        kShellWindowId_VirtualKeyboardParentContainer);
+        kShellWindowId_ImeWindowParentContainer);
     DCHECK(parent);
     parent->RemoveChild(keyboard_container);
     if (!keyboard::IsKeyboardUsabilityExperimentEnabled()) {
       // Virtual keyboard may be deactivated while still showing, notify all
       // observers that keyboard bounds changed to 0 before remove them.
       keyboard_controller->NotifyKeyboardBoundsChanging(gfx::Rect());
       keyboard_controller->RemoveObserver(shelf()->shelf_layout_manager());
       keyboard_controller->RemoveObserver(panel_layout_manager_);
       keyboard_controller->RemoveObserver(docked_layout_manager_);
       keyboard_controller->RemoveObserver(
           workspace_controller_->layout_manager());
       Shell::GetInstance()->delegate()->VirtualKeyboardActivated(false);
     }
   }
 }
 
 bool RootWindowController::IsVirtualKeyboardWindow(aura::Window* window) {
-  aura::Window* parent = GetContainer(
-      kShellWindowId_VirtualKeyboardParentContainer);
+  aura::Window* parent = GetContainer(kShellWindowId_ImeWindowParentContainer);
   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 13 matching lines @@
                                 bool first_run_after_boot) {
   aura::Window* root_window = GetRootWindow();
   Shell* shell = Shell::GetInstance();
   shell->InitRootWindow(root_window);
 
   ash_host_->AsWindowTreeHost()->SetCursor(ui::kCursorPointer);
   CreateContainersInRootWindow(root_window);
 
   if (root_window_type == VIRTUAL_KEYBOARD) {
     aura::Window* virtual_keyboard_parent_container = GetContainer(
-        kShellWindowId_VirtualKeyboardParentContainer);
+        kShellWindowId_ImeWindowParentContainer);
     virtual_keyboard_parent_container->SetBounds(root_window->bounds());
     shell->InitKeyboard();
     return;
   }
 
   CreateSystemBackground(first_run_after_boot);
 
   InitLayoutManagers();
   InitTouchHuds();
 
@@ skipping 299 matching lines @@
   SetUsesScreenCoordinates(drag_drop_container);
 
   aura::Window* overlay_container = CreateContainer(
       kShellWindowId_OverlayContainer,
       "OverlayContainer",
       lock_screen_related_containers);
   wm::SetSnapsChildrenToPhysicalPixelBoundary(overlay_container);
   SetUsesScreenCoordinates(overlay_container);
 
   aura::Window* virtual_keyboard_parent_container = CreateContainer(
-      kShellWindowId_VirtualKeyboardParentContainer,
+      kShellWindowId_ImeWindowParentContainer,
       "VirtualKeyboardParentContainer",
       root_window);
   wm::SetSnapsChildrenToPhysicalPixelBoundary(
       virtual_keyboard_parent_container);
   SetUsesScreenCoordinates(virtual_keyboard_parent_container);
 
 #if defined(OS_CHROMEOS)
   aura::Window* mouse_cursor_container = CreateContainer(
       kShellWindowId_MouseCursorContainer,
       "MouseCursorContainer",
@@ skipping 27 matching lines @@
   else
     DisableTouchHudProjection();
 }
 
 RootWindowController* GetRootWindowController(
     const aura::Window* root_window) {
   return root_window ? GetRootWindowSettings(root_window)->controller : NULL;
 }
 
 }  // namespace ash