MD Settings: Display: Disable orientaiton control in tablet mode

ash/shell.cc

Index: ash/shell.cc
diff --git a/ash/shell.cc b/ash/shell.cc
index a58793af529bb49f9a2e931ead84ec4e8ecbdd8a..61cbdf3e6cc5595c04977e8d4557d425cfdecb45 100644
--- a/ash/shell.cc
+++ b/ash/shell.cc
@@ -481,6 +481,9 @@ void Shell::UpdateAfterLoginStatusChange(LoginStatus status) {
 void Shell::NotifyMaximizeModeStarted() {
   for (auto& observer : shell_observers_)
     observer.OnMaximizeModeStarted();
+  display_manager_->NotifyMetricsChanged(
+      display_manager_->GetPrimaryDisplayCandidate(),
+      display::DisplayObserver::DISPLAY_METRIC_MAXIMIZE_MODE);
 }
 
 void Shell::NotifyMaximizeModeEnding() {
@@ -491,6 +494,9 @@ void Shell::NotifyMaximizeModeEnding() {
 void Shell::NotifyMaximizeModeEnded() {
   for (auto& observer : shell_observers_)
     observer.OnMaximizeModeEnded();
+  display_manager_->NotifyMetricsChanged(
+      display_manager_->GetPrimaryDisplayCandidate(),
+      display::DisplayObserver::DISPLAY_METRIC_MAXIMIZE_MODE);
 }
 
 void Shell::NotifyOverviewModeStarting() {