Revert of Intorduce PowerButtonObserver API

athena/input/input_manager_unittest.cc

-// Copyright 2014 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 "athena/input/input_manager_impl.h"
-
-#include "athena/input/public/accelerator_manager.h"
-#include "athena/test/base/athena_test_base.h"
-#include "base/run_loop.h"
-#include "ui/events/test/event_generator.h"
-
-namespace athena {
-namespace {
-
-class TestPowerButtonObserver : public PowerButtonObserver {
- public:
-  TestPowerButtonObserver() : count_(0), state_(RELEASED) {
-    InputManager::Get()->AddPowerButtonObserver(this);
-  }
-  virtual ~TestPowerButtonObserver() {
-    InputManager::Get()->RemovePowerButtonObserver(this);
-  }
-
-  int count() const { return count_; }
-  State state() const { return state_; }
-
-  bool WaitForLongPress() {
-    run_loop_.Run();
-    return state_ == LONG_PRESSED;
-  }
-
- private:
-  virtual void OnPowerButtonStateChanged(
-      PowerButtonObserver::State state) override {
-    state_ = state;
-    count_++;
-    if (state == LONG_PRESSED) {
-      DCHECK(run_loop_.running());
-      run_loop_.Quit();
-    }
-  }
-  base::RunLoop run_loop_;
-  int count_;
-  State state_;
-
-  DISALLOW_COPY_AND_ASSIGN(TestPowerButtonObserver);
-};
-
-}  // namespace
-
-namespace test {
-
-class ScopedPowerButtonTimeoutShortener {
- public:
-  ScopedPowerButtonTimeoutShortener()
-      : original_timeout_(
-            GetInputManagerImpl()->SetPowerButtonTimeoutMsForTest(0)) {}
-  ~ScopedPowerButtonTimeoutShortener() {
-    GetInputManagerImpl()->SetPowerButtonTimeoutMsForTest(original_timeout_);
-  }
-
- private:
-  InputManagerImpl* GetInputManagerImpl() {
-    return static_cast<InputManagerImpl*>(InputManager::Get());
-  }
-
-  int original_timeout_;
-  DISALLOW_COPY_AND_ASSIGN(ScopedPowerButtonTimeoutShortener);
-};
-
-}  // namespace test
-
-typedef test::AthenaTestBase InputManagerTest;
-
-TEST_F(InputManagerTest, PowerButton) {
-  test::ScopedPowerButtonTimeoutShortener shortener;
-  TestPowerButtonObserver observer;
-
-  ui::test::EventGenerator generator(root_window());
-  generator.PressKey(ui::VKEY_P, ui::EF_NONE);
-  EXPECT_EQ(0, observer.count());
-
-  // Test short press.
-  generator.PressKey(ui::VKEY_P, ui::EF_ALT_DOWN);
-  EXPECT_EQ(1, observer.count());
-  EXPECT_EQ(PowerButtonObserver::PRESSED, observer.state());
-  generator.ReleaseKey(ui::VKEY_P, ui::EF_ALT_DOWN);
-  EXPECT_EQ(2, observer.count());
-  EXPECT_EQ(PowerButtonObserver::RELEASED, observer.state());
-
-  // Test long press.
-  generator.PressKey(ui::VKEY_P, ui::EF_ALT_DOWN);
-  EXPECT_EQ(3, observer.count());
-  EXPECT_EQ(PowerButtonObserver::PRESSED, observer.state());
-
-  EXPECT_TRUE(observer.WaitForLongPress());
-  EXPECT_EQ(4, observer.count());
-  EXPECT_EQ(PowerButtonObserver::LONG_PRESSED, observer.state());
-
-  generator.ReleaseKey(ui::VKEY_P, ui::EF_ALT_DOWN);
-  EXPECT_EQ(5, observer.count());
-  EXPECT_EQ(PowerButtonObserver::RELEASED, observer.state());
-}
-
-}  // namespace athena