[sensors] Add Permission guard to the generic sensor apis.

chrome/browser/permissions/permission_uma_util.cc

Index: chrome/browser/permissions/permission_uma_util.cc
diff --git a/chrome/browser/permissions/permission_uma_util.cc b/chrome/browser/permissions/permission_uma_util.cc
index 8fe88da3c408c67b29f975f3ffb4eece806f58b3..6b0c024023b85697f13955138554537d934f529e 100644
--- a/chrome/browser/permissions/permission_uma_util.cc
+++ b/chrome/browser/permissions/permission_uma_util.cc
@@ -520,6 +520,10 @@ void PermissionUmaUtil::PermissionPromptAcceptedWithPersistenceToggle(
       UMA_HISTOGRAM_BOOLEAN("Permissions.Prompt.Accepted.Persisted.Flash",
                             toggle_enabled);
       break;
+
+    case PermissionType::SENSORS:
+      // TODO(riju): when UMA is ready.
+      break;
     // The user is not prompted for these permissions, thus there is no accept
     // recorded for them.
     case PermissionType::MIDI:
@@ -571,6 +575,11 @@ void PermissionUmaUtil::PermissionPromptDeniedWithPersistenceToggle(
       UMA_HISTOGRAM_BOOLEAN("Permissions.Prompt.Denied.Persisted.Flash",
                             toggle_enabled);
       break;
+    case PermissionType::SENSORS:
+      // TODO(riju): when UMA is ready.
+      // The user is not prompted for these permissions, thus there is no accept
+      // recorded for them.
+      break;
     // The user is not prompted for these permissions, thus there is no deny
     // recorded for them.
     case PermissionType::MIDI:
@@ -661,6 +670,15 @@ void PermissionUmaUtil::RecordPermissionAction(
                             "Permissions.Action.InsecureOrigin.MidiSysEx",
                             action);
       break;
+    // TODO(riju) : when UMA is ready.
+    case PermissionType::SENSORS:
+      /*
+      PERMISSION_ACTION_UMA(secure_origin, "Permissions.Action.Sensors",
+                            "Permissions.Action.SecureOrigin.Sensors",
+                            "Permissions.Action.InsecureOrigin.Sensors",
+                            action);
+      */
+      break;
     case PermissionType::PUSH_MESSAGING:
       PERMISSION_ACTION_UMA(secure_origin, "Permissions.Action.PushMessaging",
                             "Permissions.Action.SecureOrigin.PushMessaging",