Fix crash on signing out with exit warning bubble open.

ash/accelerators/accelerator_controller_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/accelerators/accelerator_controller.h"
 #include "ash/accelerators/accelerator_table.h"
 #include "ash/caps_lock_delegate.h"
 #include "ash/display/display_manager.h"
 #include "ash/ime_control_delegate.h"
 #include "ash/screenshot_delegate.h"
@@ skipping 17 matching lines @@
 #include <X11/Xlib.h>
 #include "ui/base/x/x11_util.h"
 #endif
 
 namespace ash {
 
 namespace {
 
 class TestTarget : public ui::AcceleratorTarget {
  public:
-  TestTarget() : accelerator_pressed_count_(0) {};
-  virtual ~TestTarget() {};
+  TestTarget() : accelerator_pressed_count_(0) {}
+  virtual ~TestTarget() {}
 
   int accelerator_pressed_count() const {
     return accelerator_pressed_count_;
   }
 
   void set_accelerator_pressed_count(int accelerator_pressed_count) {
     accelerator_pressed_count_ = accelerator_pressed_count;
   }
 
   // Overridden from ui::AcceleratorTarget:
@@ skipping 241 matching lines @@
 }
 
 bool TestTarget::CanHandleAccelerators() const {
   return true;
 }
 
 }  // namespace
 
 class AcceleratorControllerTest : public test::AshTestBase {
  public:
-  AcceleratorControllerTest() {};
-  virtual ~AcceleratorControllerTest() {};
+  AcceleratorControllerTest() {}
+  virtual ~AcceleratorControllerTest() {}
 
  protected:
   void EnableInternalDisplay() {
     test::DisplayManagerTestApi(Shell::GetInstance()->display_manager()).
         SetFirstDisplayAsInternalDisplay();
   }
 
   static AcceleratorController* GetController();
   static bool ProcessWithContext(const ui::Accelerator& accelerator);
 
@@ skipping 40 matching lines @@
   release.set_type(ui::ET_KEY_RELEASED);
   ExitWarningHandler* ewh = GetController()->GetExitWarningHandlerForTest();
   ASSERT_TRUE(!!ewh);
   StubForTest(ewh);
   EXPECT_TRUE(is_idle(ewh));
   EXPECT_FALSE(is_ui_shown(ewh));
   EXPECT_TRUE(ProcessWithContext(press));
   EXPECT_FALSE(ProcessWithContext(release));
   EXPECT_FALSE(is_idle(ewh));
   EXPECT_TRUE(is_ui_shown(ewh));
-  EXPECT_TRUE(ProcessWithContext(press)); // second press before timer.
+  EXPECT_TRUE(ProcessWithContext(press));  // second press before timer.
   EXPECT_FALSE(ProcessWithContext(release));
   SimulateTimerExpired(ewh);
   EXPECT_TRUE(is_exiting(ewh));
   EXPECT_FALSE(is_ui_shown(ewh));
   Reset(ewh);
 }
 
 // Single press of exit shortcut before timer => idle
 TEST_F(AcceleratorControllerTest, ExitWarningHandlerTestSinglePress) {
   ui::Accelerator press(ui::VKEY_Q, ui::EF_SHIFT_DOWN | ui::EF_CONTROL_DOWN);
   ui::Accelerator release(press);
   release.set_type(ui::ET_KEY_RELEASED);
   ExitWarningHandler* ewh = GetController()->GetExitWarningHandlerForTest();
   ASSERT_TRUE(!!ewh);
   StubForTest(ewh);
   EXPECT_TRUE(is_idle(ewh));
   EXPECT_FALSE(is_ui_shown(ewh));
   EXPECT_TRUE(ProcessWithContext(press));
   EXPECT_FALSE(ProcessWithContext(release));
   EXPECT_FALSE(is_idle(ewh));
   EXPECT_TRUE(is_ui_shown(ewh));
   SimulateTimerExpired(ewh);
   EXPECT_TRUE(is_idle(ewh));
   EXPECT_FALSE(is_ui_shown(ewh));
   Reset(ewh);
 }
+
+// Shutdown ash with exit warning bubble open should not crash.
+TEST_F(AcceleratorControllerTest, LingeringExitWarningBubble) {
+  ExitWarningHandler* ewh = GetController()->GetExitWarningHandlerForTest();
+  ASSERT_TRUE(!!ewh);
+  StubForTest(ewh);
+
+  // Trigger once to show the bubble.
+  ewh->HandleAccelerator();
+  EXPECT_FALSE(is_idle(ewh));
+  EXPECT_TRUE(is_ui_shown(ewh));
+
+  // Exit ash and there should be no crash
+}
 #endif  // !defined(OS_WIN)
 
 TEST_F(AcceleratorControllerTest, Register) {
   const ui::Accelerator accelerator_a(ui::VKEY_A, ui::EF_NONE);
   TestTarget target;
   GetController()->Register(accelerator_a, &target);
 
   // The registered accelerator is processed.
   EXPECT_TRUE(ProcessWithContext(accelerator_a));
   EXPECT_EQ(1, target.accelerator_pressed_count());
@@ skipping 501 matching lines @@
 #endif
 
 #if !defined(NDEBUG)
   // ToggleDesktopBackgroundMode
   EXPECT_TRUE(ProcessWithContext(
       ui::Accelerator(ui::VKEY_B, ui::EF_CONTROL_DOWN | ui::EF_ALT_DOWN)));
 #if !defined(OS_LINUX)
   // ToggleDesktopFullScreen (not implemented yet on Linux)
   EXPECT_TRUE(ProcessWithContext(
       ui::Accelerator(ui::VKEY_F11, ui::EF_CONTROL_DOWN)));
-#endif //  OS_LINUX
-#endif //  !NDEBUG
+#endif  // OS_LINUX
+#endif  // !NDEBUG
 
 #if !defined(OS_WIN)
   // Exit
   ExitWarningHandler* ewh = GetController()->GetExitWarningHandlerForTest();
   ASSERT_TRUE(!!ewh);
   StubForTest(ewh);
   EXPECT_TRUE(is_idle(ewh));
   EXPECT_FALSE(is_ui_shown(ewh));
   EXPECT_TRUE(ProcessWithContext(
       ui::Accelerator(ui::VKEY_Q, ui::EF_SHIFT_DOWN | ui::EF_CONTROL_DOWN)));
@@ skipping 304 matching lines @@
         scoped_ptr<ScreenshotDelegate>(delegate).Pass());
     EXPECT_EQ(0, delegate->handle_take_screenshot_count());
     EXPECT_TRUE(ProcessWithContext(
         ui::Accelerator(ui::VKEY_MEDIA_LAUNCH_APP1, ui::EF_CONTROL_DOWN)));
     EXPECT_EQ(1, delegate->handle_take_screenshot_count());
     EXPECT_TRUE(ProcessWithContext(
         ui::Accelerator(ui::VKEY_PRINT, ui::EF_NONE)));
     EXPECT_EQ(2, delegate->handle_take_screenshot_count());
     EXPECT_TRUE(ProcessWithContext(
         ui::Accelerator(ui::VKEY_MEDIA_LAUNCH_APP1,
- ui::EF_SHIFT_DOWN | ui::EF_CONTROL_DOWN)));
+        ui::EF_SHIFT_DOWN | ui::EF_CONTROL_DOWN)));
     EXPECT_EQ(2, delegate->handle_take_screenshot_count());
   }
   // Brightness
   const ui::Accelerator brightness_down(ui::VKEY_BRIGHTNESS_DOWN, ui::EF_NONE);
   const ui::Accelerator brightness_up(ui::VKEY_BRIGHTNESS_UP, ui::EF_NONE);
   {
     EXPECT_FALSE(ProcessWithContext(brightness_down));
     EXPECT_FALSE(ProcessWithContext(brightness_up));
     DummyBrightnessControlDelegate* delegate =
         new DummyBrightnessControlDelegate(true);
@@ skipping 72 matching lines @@
     EXPECT_EQ(volume_down, delegate->last_accelerator());
     EXPECT_EQ(0, delegate->handle_volume_up_count());
     EXPECT_TRUE(ProcessWithContext(volume_up));
     EXPECT_EQ(1, delegate->handle_volume_up_count());
     EXPECT_EQ(volume_up, delegate->last_accelerator());
   }
 }
 #endif
 
 }  // namespace ash