chromeos: Add PowerManagerClient::GetSwitchStates().

ash/common/wm/maximize_mode/maximize_mode_controller.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 "ash/common/wm/maximize_mode/maximize_mode_controller.h"
 
 #include <utility>
 
 #include "ash/common/ash_switches.h"
 #include "ash/common/wm/maximize_mode/maximize_mode_window_manager.h"
@@ skipping 188 matching lines @@
           *update, chromeos::ACCELEROMETER_SOURCE_ATTACHED_KEYBOARD) &&
       IsAngleBetweenAccelerometerReadingsStable(*update)) {
     // update.has(chromeos::ACCELEROMETER_SOURCE_ATTACHED_KEYBOARD)
     // Ignore the reading if it appears unstable. The reading is considered
     // unstable if it deviates too much from gravity and/or the magnitude of the
     // reading from the lid differs too much from the reading from the base.
     HandleHingeRotation(update);
   }
 }
 
-void MaximizeModeController::LidEventReceived(bool open,
-                                              const base::TimeTicks& time) {
+void MaximizeModeController::LidEventReceived(
+    chromeos::PowerManagerClient::LidState state,
+    const base::TimeTicks& time) {
+  const bool open = state == chromeos::PowerManagerClient::LidState::OPEN;
   if (open)
     last_lid_open_time_ = time;
   lid_is_closed_ = !open;
   LeaveMaximizeMode();
 }
 
 void MaximizeModeController::TabletModeEventReceived(
-    bool on,
+    chromeos::PowerManagerClient::TabletMode mode,
     const base::TimeTicks& time) {
+  const bool on = mode == chromeos::PowerManagerClient::TabletMode::ON;
   tablet_mode_switch_is_on_ = on;
   // Do not change if docked.
   if (!display::Display::HasInternalDisplay() ||
       !WmShell::Get()->IsActiveDisplayId(
           display::Display::InternalDisplayId())) {
     return;
   }
   // The tablet mode switch activates at 300 degrees, so it is always reliable
   // when |on|. However we wish to exit maximize mode at a smaller angle, so
   // when |on| is false we ignore if it is possible to calculate the lid angle.
@@ skipping 196 matching lines @@
   return elapsed_time.InSeconds() <= kLidRecentlyOpenedDurationSeconds;
 }
 
 void MaximizeModeController::SetTickClockForTest(
     std::unique_ptr<base::TickClock> tick_clock) {
   DCHECK(tick_clock_);
   tick_clock_ = std::move(tick_clock);
 }
 
 }  // namespace ash