MD Settings: Display: Disable orientaiton control in tablet mode

extensions/common/api/system_display.idl

Index: extensions/common/api/system_display.idl
diff --git a/extensions/common/api/system_display.idl b/extensions/common/api/system_display.idl
index 1674d1b1f00168f0fddc2d1fb3e61836ca56ebfc..aac4882ed57e1dcad8e097811152f210feb1c845 100644
--- a/extensions/common/api/system_display.idl
+++ b/extensions/common/api/system_display.idl
@@ -133,6 +133,11 @@ namespace system.display {
     // for $(ref:enableUnifiedDesktop).
     boolean isUnified;
 
+    // True when the display is in maximize mode. This is enabled for touch
+    // devices with auto rotation. It is only set for the primary display.
+    // The default value is false.
+    boolean? isMaximizeMode;
+
     // The number of pixels per inch along the x-axis.
     double dpiX;