Remove keyboard usability mode

ui/keyboard/keyboard_controller_unittest.cc

Index: ui/keyboard/keyboard_controller_unittest.cc
diff --git a/ui/keyboard/keyboard_controller_unittest.cc b/ui/keyboard/keyboard_controller_unittest.cc
index 39341d92f6cac791495ef2b98b801320b7d4d2e6..9688a2f51d1347a2da9adf7c11a765cf402e81cd 100644
--- a/ui/keyboard/keyboard_controller_unittest.cc
+++ b/ui/keyboard/keyboard_controller_unittest.cc
@@ -30,7 +30,6 @@
 #include "ui/gfx/geometry/rect.h"
 #include "ui/keyboard/keyboard_controller_observer.h"
 #include "ui/keyboard/keyboard_controller_proxy.h"
-#include "ui/keyboard/keyboard_switches.h"
 #include "ui/keyboard/keyboard_util.h"
 #include "ui/wm/core/default_activation_client.h"
 
@@ -572,38 +571,4 @@ TEST_F(KeyboardControllerAnimationTest, ContainerShowWhileHide) {
   EXPECT_EQ(gfx::Transform(), layer->transform());
 }
 
-class KeyboardControllerUsabilityTest : public KeyboardControllerTest {
- public:
-  KeyboardControllerUsabilityTest() {}
-  virtual ~KeyboardControllerUsabilityTest() {}
-
-  virtual void SetUp() OVERRIDE {
-    CommandLine::ForCurrentProcess()->AppendSwitch(
-        switches::kKeyboardUsabilityExperiment);
-    KeyboardControllerTest::SetUp();
-  }
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(KeyboardControllerUsabilityTest);
-};
-
-TEST_F(KeyboardControllerUsabilityTest, KeyboardAlwaysVisibleInUsabilityTest) {
-  const gfx::Rect& root_bounds = root_window()->bounds();
-
-  ui::DummyTextInputClient input_client(ui::TEXT_INPUT_TYPE_TEXT);
-  ui::DummyTextInputClient no_input_client(ui::TEXT_INPUT_TYPE_NONE);
-
-  aura::Window* keyboard_container(controller()->GetContainerWindow());
-  keyboard_container->SetBounds(root_bounds);
-  root_window()->AddChild(keyboard_container);
-
-  SetFocus(&input_client);
-  EXPECT_TRUE(keyboard_container->IsVisible());
-
-  SetFocus(&no_input_client);
-  // Keyboard should not hide itself after lost focus.
-  EXPECT_TRUE(keyboard_container->IsVisible());
-  EXPECT_FALSE(WillHideKeyboard());
-}
-
 }  // namespace keyboard