Enable new-virtual-keyboard-behavior flag by default.

ash/wm/workspace/workspace_layout_manager_keyboard_unittest.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/wm/workspace/workspace_layout_manager.h"
 
 #include <string>
 #include <utility>
 
 #include "ash/public/cpp/shell_window_ids.h"
@@ skipping 65 matching lines @@
 
   // Initializes the keyboard bounds using the bottom half of the work area.
   void InitKeyboardBounds() {
     gfx::Rect work_area(
         display::Screen::GetScreen()->GetPrimaryDisplay().work_area());
     keyboard_bounds_.SetRect(work_area.x(),
                              work_area.y() + work_area.height() / 2,
                              work_area.width(), work_area.height() / 2);
   }
 
-  void EnableNewVKMode() {
+  void DisableNewVKMode() {
     base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
-    if (!command_line->HasSwitch(::switches::kUseNewVirtualKeyboardBehavior))
-      command_line->AppendSwitch(::switches::kUseNewVirtualKeyboardBehavior);
+    if (!command_line->HasSwitch(
+            ::switches::kDisableNewVirtualKeyboardBehavior)) {
+      command_line->AppendSwitch(
+          ::switches::kDisableNewVirtualKeyboardBehavior);
+    }
   }
 
   const gfx::Rect& keyboard_bounds() const { return keyboard_bounds_; }
 
  private:
   gfx::Insets restore_work_area_insets_;
   gfx::Rect keyboard_bounds_;
   WorkspaceLayoutManager* layout_manager_;
 
   DISALLOW_COPY_AND_ASSIGN(WorkspaceLayoutManagerKeyboardTest2);
 };
 
 TEST_F(WorkspaceLayoutManagerKeyboardTest2, ChangeWorkAreaInNonStickyMode) {
+  // Append the flag to cause work area change in non-sticky mode.
+  DisableNewVKMode();
+
   keyboard::SetAccessibilityKeyboardEnabled(true);
   InitKeyboardBounds();
   Shell::Get()->CreateKeyboard();
   keyboard::KeyboardController* kb_controller =
       keyboard::KeyboardController::GetInstance();
 
   gfx::Rect work_area(
       display::Screen::GetScreen()->GetPrimaryDisplay().work_area());
 
   gfx::Rect orig_window_bounds(0, 100, work_area.width(),
@@ skipping 29 matching lines @@
 
   kb_controller->HideKeyboard(
       keyboard::KeyboardController::HIDE_REASON_AUTOMATIC);
   EXPECT_EQ(orig_window_bounds, window->bounds());
 }
 
 // When kAshUseNewVKWindowBehavior flag enabled, do not change accessibility
 // keyboard work area in non-sticky mode.
 TEST_F(WorkspaceLayoutManagerKeyboardTest2,
        IgnoreWorkAreaChangeinNonStickyMode) {
-  // Append flag to ignore work area change in non-sticky mode.
-  EnableNewVKMode();
-
   keyboard::SetAccessibilityKeyboardEnabled(true);
   InitKeyboardBounds();
   Shell::Get()->CreateKeyboard();
   keyboard::KeyboardController* kb_controller =
       keyboard::KeyboardController::GetInstance();
 
   gfx::Rect work_area(
       display::Screen::GetScreen()->GetPrimaryDisplay().work_area());
 
   gfx::Rect orig_window_bounds(0, 100, work_area.width(),
@@ skipping 26 matching lines @@
   changed_window_bounds.Offset(0, -shift);
   // Window should be shifted up.
   EXPECT_EQ(changed_window_bounds, window->bounds());
 
   kb_controller->HideKeyboard(
       keyboard::KeyboardController::HIDE_REASON_AUTOMATIC);
   EXPECT_EQ(orig_window_bounds, window->bounds());
 }
 
 }  // namespace ash