Block keyboard and mouse input when maximize mode is activated by accelerometer.

ash/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/wm/maximize_mode/maximize_mode_controller.h"
 
 #include "ash/accelerometer/accelerometer_controller.h"
 #include "ash/display/display_manager.h"
 #include "ash/shell.h"
+#include "ash/wm/maximize_mode/maximize_mode_event_blocker.h"
 #include "ui/gfx/vector3d_f.h"
 
 namespace ash {
 
 namespace {
 
 // The hinge angle at which to enter maximize mode.
 const float kEnterMaximizeModeAngle = 200.0f;
 
 // The angle at which to exit maximize mode, this is specifically less than the
@@ skipping 86 matching lines @@
   float angle = ClockwiseAngleBetweenVectorsInDegrees(base, lid, hinge_vector);
 
   // Toggle maximize mode on or off when corresponding thresholds are passed.
   // TODO(flackr): Make MaximizeModeController own the MaximizeModeWindowManager
   // such that observations of state changes occur after the change and shell
   // has fewer states to track.
   if (maximize_mode_engaged &&
       angle > kFullyOpenAngleErrorTolerance &&
       angle < kExitMaximizeModeAngle) {
     Shell::GetInstance()->EnableMaximizeModeWindowManager(false);
+    event_blocker_.reset();
   } else if (!maximize_mode_engaged &&
       angle > kEnterMaximizeModeAngle) {
     Shell::GetInstance()->EnableMaximizeModeWindowManager(true);
+    event_blocker_.reset(new MaximizeModeEventBlocker);
   }
 }
 
 void MaximizeModeController::HandleScreenRotation(const gfx::Vector3dF& lid) {
   bool maximize_mode_engaged =
       Shell::GetInstance()->IsMaximizeModeWindowManagerEnabled();
 
   DisplayManager* display_manager =
       Shell::GetInstance()->display_manager();
   gfx::Display::Rotation current_rotation = display_manager->GetDisplayInfo(
@@ skipping 63 matching lines @@
   // When exiting maximize mode return rotation to 0. When entering, rotate to
   // match screen orientation.
   if (new_rotation == gfx::Display::ROTATE_0 ||
       maximize_mode_engaged) {
     display_manager->SetDisplayRotation(gfx::Display::InternalDisplayId(),
                                         new_rotation);
   }
 }
 
 }  // namespace ash