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

chrome/browser/permissions/permission_manager.cc

Index: chrome/browser/permissions/permission_manager.cc
diff --git a/chrome/browser/permissions/permission_manager.cc b/chrome/browser/permissions/permission_manager.cc
index bc068fc197fd3efacf50652d8bc8dbabe86966dd..8ec690c071864e4ea2ff0a59b2b51b92da87e85d 100644
--- a/chrome/browser/permissions/permission_manager.cc
+++ b/chrome/browser/permissions/permission_manager.cc
@@ -104,6 +104,9 @@ ContentSettingsType PermissionTypeToContentSetting(PermissionType permission) {
       return CONTENT_SETTINGS_TYPE_BACKGROUND_SYNC;
     case PermissionType::FLASH:
       return CONTENT_SETTINGS_TYPE_PLUGINS;
+    // TODO(riju): Add ContentSetting entries for sensors later.
+    case PermissionType::SENSORS:
+      return CONTENT_SETTINGS_TYPE_DEFAULT;

[Reilly Grant (use Gerrit), 2017/07/20 13:56:01]

Is it valid to use this? Maybe we should combine this with the other permissions
patch that is floating around and also define a ContentSettingsType for this.

[riju_, 2017/07/21 13:03:38]

Done.

     case PermissionType::NUM:
       // This will hit the NOTREACHED below.
       break;