Migrate FuzzInterface to new Mojo interface

This CL converts FuzzAssociated() of FuzzInterface interface
to new Mojo type

 - Convert InterfaceAssociatedRequest to mojo::PendingAssociatedReceiver
 - Convert AssociatedBindingSet to AssociatedReceiverSet
 - Convert InterfaceAssociatedPtr to mojo::AssociatedRemote

Additionally, this CL adds a copyright to fuzz.mojom.

Bug: 955171
Change-Id: I8942810b085057b8f274bf748c58ecc5cf24c13c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1833020Reviewed-by: Oliver Chang <ochang@chromium.org>
Reviewed-by: Ken Rockot <rockot@google.com>
Commit-Queue: Gyuyoung Kim <gyuyoung@igalia.com>
Cr-Commit-Position: refs/heads/master@{#703588}

mojo/public/tools/fuzzers/fuzz.mojom

+// Copyright 2019 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
 module fuzz.mojom;
 
 [Extensible]
@@ -63,6 +67,7 @@ interface FuzzDummyInterface {
   Ping();
 };
 
+// A comprehensive Mojo interface used for fuzzing message dispatch and validation.
 interface FuzzInterface {
   FuzzBasic();
   FuzzBasicResp() => ();
@@ -74,5 +79,5 @@ interface FuzzInterface {
   [Sync]
   FuzzArgsSyncResp(FuzzStruct a, FuzzStruct? b) => ();
 
-  FuzzAssociated(associated FuzzDummyInterface& request);
+  FuzzAssociated(pending_associated_receiver<FuzzDummyInterface> receiver);
 };

mojo/public/tools/fuzzers/fuzz_impl.cc

@@ -38,8 +38,8 @@ void FuzzImpl::FuzzArgsSyncResp(fuzz::mojom::FuzzStructPtr a,
 }
 
 void FuzzImpl::FuzzAssociated(
-    fuzz::mojom::FuzzDummyInterfaceAssociatedRequest req) {
-  associated_bindings_.AddBinding(this, std::move(req));
+    mojo::PendingAssociatedReceiver<fuzz::mojom::FuzzDummyInterface> receiver) {
+  associated_receivers_.Add(this, std::move(receiver));
 }
 
 void FuzzImpl::Ping() {}

mojo/public/tools/fuzzers/fuzz_impl.h

@@ -5,8 +5,9 @@
 #ifndef MOJO_PUBLIC_TOOLS_FUZZERS_FUZZ_IMPL_H_
 #define MOJO_PUBLIC_TOOLS_FUZZERS_FUZZ_IMPL_H_
 
-#include "mojo/public/cpp/bindings/associated_binding_set.h"
+#include "mojo/public/cpp/bindings/associated_receiver_set.h"
 #include "mojo/public/cpp/bindings/binding.h"
+#include "mojo/public/cpp/bindings/pending_associated_receiver.h"
 #include "mojo/public/tools/fuzzers/fuzz.mojom.h"
 
 class FuzzImpl : public fuzz::mojom::FuzzInterface,
@@ -30,7 +31,8 @@ class FuzzImpl : public fuzz::mojom::FuzzInterface,
                         FuzzArgsSyncRespCallback callback) override;
 
   void FuzzAssociated(
-      fuzz::mojom::FuzzDummyInterfaceAssociatedRequest req) override;
+      mojo::PendingAssociatedReceiver<fuzz::mojom::FuzzDummyInterface> receiver)
+      override;
 
   // fuzz::mojom::FuzzDummyInterface:
   void Ping() override;
@@ -39,7 +41,7 @@ class FuzzImpl : public fuzz::mojom::FuzzInterface,
   mojo::Binding<FuzzInterface> binding_;
 
  private:
-  mojo::AssociatedBindingSet<FuzzDummyInterface> associated_bindings_;
+  mojo::AssociatedReceiverSet<FuzzDummyInterface> associated_receivers_;
 };
 
 #endif  // MOJO_PUBLIC_TOOLS_FUZZERS_FUZZ_IMPL_H_

mojo/public/tools/fuzzers/mojo_fuzzer_message_dump.cc

@@ -13,6 +13,7 @@
 #include "base/task/single_thread_task_executor.h"
 #include "base/task/thread_pool/thread_pool_instance.h"
 #include "mojo/core/embedder/embedder.h"
+#include "mojo/public/cpp/bindings/associated_remote.h"
 #include "mojo/public/tools/fuzzers/fuzz.mojom.h"
 #include "mojo/public/tools/fuzzers/fuzz_impl.h"
 
@@ -225,7 +226,7 @@ void FuzzCallback() {}
  * supplied directory. */
 void DumpMessages(std::string output_directory) {
   fuzz::mojom::FuzzInterfacePtr fuzz;
-  fuzz::mojom::FuzzDummyInterfaceAssociatedPtr dummy;
+  mojo::AssociatedRemote<fuzz::mojom::FuzzDummyInterface> dummy;
 
   /* Create the impl and add a MessageDumper to the filter chain. */
   env->impl = std::make_unique<FuzzImpl>(MakeRequest(&fuzz));
@@ -247,7 +248,7 @@ void DumpMessages(std::string output_directory) {
                          GetPopulatedFuzzStruct(), base::Bind(FuzzCallback));
   fuzz->FuzzArgsSyncResp(fuzz::mojom::FuzzStruct::New(),
                          GetPopulatedFuzzStruct(), base::Bind(FuzzCallback));
-  fuzz->FuzzAssociated(MakeRequest(&dummy));
+  fuzz->FuzzAssociated(dummy.BindNewEndpointAndPassReceiver());
   dummy->Ping();
 }