Enable use_once_callback for //content/common/*.mojom

content/public/test/mock_render_thread.cc

Index: content/public/test/mock_render_thread.cc
diff --git a/content/public/test/mock_render_thread.cc b/content/public/test/mock_render_thread.cc
index c953a5d206d4ea5511e8e3791a0d461bdf6f2e6d..3298c8934e83f3a4739c3d4f1c07b75ec44facae 100644
--- a/content/public/test/mock_render_thread.cc
+++ b/content/public/test/mock_render_thread.cc
@@ -36,13 +36,13 @@ class MockRenderMessageFilterImpl : public mojom::RenderMessageFilter {
   ~MockRenderMessageFilterImpl() override {}
 
   // mojom::RenderMessageFilter:
-  void GenerateRoutingID(const GenerateRoutingIDCallback& callback) override {
+  void GenerateRoutingID(GenerateRoutingIDCallback callback) override {
     NOTREACHED();
-    callback.Run(MSG_ROUTING_NONE);
+    std::move(callback).Run(MSG_ROUTING_NONE);
   }
 
   void CreateNewWindow(mojom::CreateNewWindowParamsPtr params,
-                       const CreateNewWindowCallback& callback) override {
+                       CreateNewWindowCallback callback) override {
     // NOTE: This implementation of mojom::RenderMessageFilter is used client-
     // side only. Because sync mojom methods have a different interface for
     // bindings- and client-side, we only implement the client-side interface
@@ -58,8 +58,8 @@ class MockRenderMessageFilterImpl : public mojom::RenderMessageFilter {
   }
 
   void CreateNewWidget(int32_t opener_id,
-                      blink::WebPopupType popup_type,
-                      const CreateNewWidgetCallback& callback) override {
+                       blink::WebPopupType popup_type,
+                       CreateNewWidgetCallback callback) override {
     // See comment in CreateNewWindow().
     NOTREACHED();
   }
@@ -73,7 +73,7 @@ class MockRenderMessageFilterImpl : public mojom::RenderMessageFilter {
 
   void CreateFullscreenWidget(
       int opener_id,
-      const CreateFullscreenWidgetCallback& callback) override {
+      CreateFullscreenWidgetCallback callback) override {
     NOTREACHED();
   }