New accessibility virtual keyboard behavior in non-sticky mode.

ui/keyboard/keyboard_ui.cc

 // Copyright 2015 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 "ui/keyboard/keyboard_ui.h"
 
+#include "base/command_line.h"
 #include "ui/aura/window.h"
 #include "ui/base/ime/input_method.h"
 #include "ui/base/ime/text_input_client.h"
+#include "ui/base/ui_base_switches.h"
 #include "ui/keyboard/keyboard_controller.h"
 
 namespace keyboard {
 
 KeyboardUI::KeyboardUI() : keyboard_controller_(nullptr) {}
 KeyboardUI::~KeyboardUI() {}
 
 void KeyboardUI::ShowKeyboardContainer(aura::Window* container) {
   if (HasKeyboardWindow()) {
     GetKeyboardWindow()->Show();
     container->Show();
   }
 }
 
 void KeyboardUI::HideKeyboardContainer(aura::Window* container) {
   if (HasKeyboardWindow()) {
     container->Hide();
     GetKeyboardWindow()->Hide();
   }
 }
 
 void KeyboardUI::EnsureCaretInWorkArea() {
-  if (GetInputMethod()->GetTextInputClient()) {
-    aura::Window* keyboard_window = GetKeyboardWindow();
-    GetInputMethod()->GetTextInputClient()->EnsureCaretNotInRect(
-        keyboard_window->GetBoundsInScreen());
+  if (GetInputMethod()) {

[oshima, 2017/04/17 13:24:22]

nit: quit early

[yhanada, 2017/04/26 11:29:45]

Done.

+    const aura::Window* keyboard_window = GetKeyboardWindow();
+    const gfx::Rect keyboard_bounds_in_screen =
+        keyboard_window->IsVisible() ? keyboard_window->GetBoundsInScreen()
+                                     : gfx::Rect();
+
+    // Use new virtual keyboard behavior only if the flag enabled and in
+    // non-sticky mode.
+    const bool new_vk_behavior =
+        (base::CommandLine::ForCurrentProcess()->HasSwitch(
+             ::switches::kUseNewVirtualKeyboardBehavior) &&
+         !keyboard::KeyboardController::GetInstance()->keyboard_locked());
+
+    if (new_vk_behavior) {
+      GetInputMethod()->SetOnScreenKeyboardBounds(keyboard_bounds_in_screen);
+    } else if (GetInputMethod()->GetTextInputClient()) {
+      GetInputMethod()->GetTextInputClient()->EnsureCaretNotInRect(
+          keyboard_bounds_in_screen);
+    }
   }
 }
 
 void KeyboardUI::SetController(KeyboardController* controller) {
   keyboard_controller_ = controller;
 }
 
 }  // namespace keyboard