[sensors][permission] Add new permission types in permission module.

components/content_settings/core/common/content_settings_types.h

Index: components/content_settings/core/common/content_settings_types.h
diff --git a/components/content_settings/core/common/content_settings_types.h b/components/content_settings/core/common/content_settings_types.h
index e752e9e96e45bea2434bc6d4f3310bbce8307fa0..aa442bbdb3e5a147e587dbb88c1342d9ac2f6a2e 100644
--- a/components/content_settings/core/common/content_settings_types.h
+++ b/components/content_settings/core/common/content_settings_types.h
@@ -75,6 +75,11 @@ enum ContentSettingsType {
   // sound. This will not block playback but instead the user will not hear it.
   CONTENT_SETTINGS_TYPE_SOUND,
 
+  // Setting for the Generic Sensor API covering ambient-light-sensor,
+  // accelerometer, gyroscope and magnetometer. These are all mapped to a single
+  // ContentSettingsType.
+  CONTENT_SETTINGS_TYPE_SENSORS,
+
   CONTENT_SETTINGS_NUM_TYPES,
 };