Reland "Add a full screen virtual keyboard to virtual keyboard root 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 524 matching lines @@
           GetTopmostFullscreenWindow());
 }
 
 void RootWindowController::ActivateKeyboard(
     keyboard::KeyboardController* keyboard_controller) {
   if (!keyboard::IsKeyboardEnabled() ||
       GetContainer(kShellWindowId_VirtualKeyboardContainer)) {
     return;
   }
   DCHECK(keyboard_controller);
-  keyboard_controller->AddObserver(shelf()->shelf_layout_manager());
-  keyboard_controller->AddObserver(panel_layout_manager_);
-  keyboard_controller->AddObserver(docked_layout_manager_);
+  if (!keyboard::IsKeyboardUsabilityExperimentEnabled()) {
+    keyboard_controller->AddObserver(shelf()->shelf_layout_manager());
+    keyboard_controller->AddObserver(panel_layout_manager_);
+    keyboard_controller->AddObserver(docked_layout_manager_);
+  }
   aura::Window* parent = root_window();
   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::IsKeyboardEnabled())
     return;
 
   DCHECK(keyboard_controller);
   aura::Window* keyboard_container =
       keyboard_controller->GetContainerWindow();
   if (keyboard_container->GetRootWindow() == root_window()) {
     root_window()->RemoveChild(keyboard_container);
-    keyboard_controller->RemoveObserver(shelf()->shelf_layout_manager());
-    keyboard_controller->RemoveObserver(panel_layout_manager_);
-    keyboard_controller->RemoveObserver(docked_layout_manager_);
+    if (!keyboard::IsKeyboardUsabilityExperimentEnabled()) {
+      keyboard_controller->RemoveObserver(shelf()->shelf_layout_manager());
+      keyboard_controller->RemoveObserver(panel_layout_manager_);
+      keyboard_controller->RemoveObserver(docked_layout_manager_);
+    }
   }
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // RootWindowController, private:
 
 RootWindowController::RootWindowController(aura::RootWindow* root_window)
     : root_window_(root_window),
       root_window_layout_(NULL),
       docked_layout_manager_(NULL),
       panel_layout_manager_(NULL),
       touch_hud_debug_(NULL),
       touch_hud_projection_(NULL) {
   GetRootWindowSettings(root_window_->window())->controller = this;
   screen_dimmer_.reset(new ScreenDimmer(root_window_->window()));
 
   stacking_controller_.reset(new StackingController);
   aura::client::SetWindowTreeClient(root_window_->window(),
                                     stacking_controller_.get());
   capture_client_.reset(
       new views::corewm::ScopedCaptureClient(root_window_->window()));
 }
 
 void RootWindowController::Init(RootWindowType root_window_type,
                                 bool first_run_after_boot) {
-  Shell::GetInstance()->InitRootWindow(root_window());
+  Shell* shell = Shell::GetInstance();
+  shell->InitRootWindow(root_window());
 
   root_window_->SetCursor(ui::kCursorPointer);
   CreateContainersInRootWindow(root_window_->window());
 
-  if (root_window_type == VIRTUAL_KEYBOARD)
+  if (root_window_type == VIRTUAL_KEYBOARD) {
+    shell->InitKeyboard();
     return;
+  }
 
   CreateSystemBackground(first_run_after_boot);
 
   InitLayoutManagers();
   InitTouchHuds();
 
   if (Shell::GetPrimaryRootWindowController()->
       GetSystemModalLayoutManager(NULL)->has_modal_background()) {
     GetSystemModalLayoutManager(NULL)->CreateModalBackground();
   }
 
-  Shell* shell = Shell::GetInstance();
   shell->AddShellObserver(this);
 
   if (root_window_type == PRIMARY) {
     root_window_layout()->OnWindowResized();
-    shell->InitKeyboard(this);
+    if (!keyboard::IsKeyboardUsabilityExperimentEnabled())
+      shell->InitKeyboard();
   } else {
     root_window_layout()->OnWindowResized();
     shell->desktop_background_controller()->OnRootWindowAdded(root_window());
     shell->high_contrast_controller()->OnRootWindowAdded(
         root_window_->window());
     root_window_->host()->Show();
 
     // Create a launcher if a user is already logged in.
     if (shell->session_state_delegate()->NumberOfLoggedInUsers())
       shelf()->CreateLauncher();
@@ skipping 292 matching lines @@
     DisableTouchHudProjection();
 }
 
 RootWindowController* GetRootWindowController(
     const aura::Window* root_window) {
   return root_window ? GetRootWindowSettings(root_window)->controller : NULL;
 }
 
 }  // namespace internal
 }  // namespace ash