3 files changed, 3 insertions, 12 deletions
diff --git a/backend/Backend.h b/backend/Backend.h
index 82b8fca..c24e818 100644
--- a/backend/Backend.h
+++ b/backend/Backend.h
@@ -14,8 +14,7 @@
  * limitations under the License.
  */
 
-#ifndef ANDROID_BACKEND_H
-#define ANDROID_BACKEND_H
+#pragma once
 
 #include "hwc2_device/DrmHwcTwo.h"
 
@@ -41,5 +40,3 @@ class Backend {
       int client_start, size_t client_size);
 };
 }  // namespace android
-
-#endif
diff --git a/backend/BackendClient.h b/backend/BackendClient.h
index 95abb0f..1333eca 100644
--- a/backend/BackendClient.h
+++ b/backend/BackendClient.h
@@ -14,8 +14,7 @@
  * limitations under the License.
  */
 
-#ifndef ANDROID_BACKEND_CLIENT_H
-#define ANDROID_BACKEND_CLIENT_H
+#pragma once
 
 #include "Backend.h"
 
@@ -27,5 +26,3 @@ class BackendClient : public Backend {
                               uint32_t *num_requests) override;
 };
 }  // namespace android
-
-#endif
diff --git a/backend/BackendManager.h b/backend/BackendManager.h
index 751cb78..4976744 100644
--- a/backend/BackendManager.h
+++ b/backend/BackendManager.h
@@ -14,8 +14,7 @@
  * limitations under the License.
  */
 
-#ifndef ANDROID_BACKEND_MANAGER_H
-#define ANDROID_BACKEND_MANAGER_H
+#pragma once
 
 #include <functional>
 #include <map>
@@ -54,5 +53,3 @@ class BackendManager {
   std::map<std::string, BackendConstructorT> available_backends_;
 };
 }  // namespace android
-
-#endif