Change single-interface mojo bindings to use SequencedTaskRunner.

mojo/public/cpp/bindings/lib/interface_ptr_state.h

 // Copyright 2014 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.
 
 #ifndef MOJO_PUBLIC_CPP_BINDINGS_LIB_INTERFACE_PTR_STATE_H_
 #define MOJO_PUBLIC_CPP_BINDINGS_LIB_INTERFACE_PTR_STATE_H_
 
 #include <stdint.h>
 
 #include <algorithm>  // For |std::swap()|.
 #include <memory>
 #include <string>
 #include <utility>
 
 #include "base/bind.h"
 #include "base/callback_forward.h"
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "base/memory/ref_counted.h"
-#include "base/single_thread_task_runner.h"
+#include "base/sequenced_task_runner.h"
 #include "mojo/public/cpp/bindings/associated_group.h"
 #include "mojo/public/cpp/bindings/connection_error_callback.h"
 #include "mojo/public/cpp/bindings/filter_chain.h"
 #include "mojo/public/cpp/bindings/interface_endpoint_client.h"
 #include "mojo/public/cpp/bindings/interface_id.h"
 #include "mojo/public/cpp/bindings/interface_ptr_info.h"
 #include "mojo/public/cpp/bindings/lib/control_message_handler.h"
 #include "mojo/public/cpp/bindings/lib/control_message_proxy.h"
 #include "mojo/public/cpp/bindings/lib/multiplex_router.h"
 #include "mojo/public/cpp/bindings/message_header_validator.h"
@@ skipping 56 matching lines @@
     using std::swap;
     swap(other->router_, router_);
     swap(other->endpoint_client_, endpoint_client_);
     swap(other->proxy_, proxy_);
     handle_.swap(other->handle_);
     runner_.swap(other->runner_);
     swap(other->version_, version_);
   }
 
   void Bind(InterfacePtrInfo<Interface> info,
-            scoped_refptr<base::SingleThreadTaskRunner> runner) {
+            scoped_refptr<base::SequencedTaskRunner> runner) {
     DCHECK(!router_);
     DCHECK(!endpoint_client_);
     DCHECK(!proxy_);
     DCHECK(!handle_.is_valid());
     DCHECK_EQ(0u, version_);
     DCHECK(info.is_valid());
 
     handle_ = info.PassHandle();
     version_ = info.version();
     runner_ = std::move(runner);
@@ skipping 101 matching lines @@
 
   scoped_refptr<MultiplexRouter> router_;
 
   std::unique_ptr<InterfaceEndpointClient> endpoint_client_;
   std::unique_ptr<Proxy> proxy_;
 
   // |router_| (as well as other members above) is not initialized until
   // read/write with the message pipe handle is needed. |handle_| is valid
   // between the Bind() call and the initialization of |router_|.
   ScopedMessagePipeHandle handle_;
-  scoped_refptr<base::SingleThreadTaskRunner> runner_;
+  scoped_refptr<base::SequencedTaskRunner> runner_;
 
   uint32_t version_;
 
   DISALLOW_COPY_AND_ASSIGN(InterfacePtrState);
 };
 
 }  // namespace internal
 }  // namespace mojo
 
 #endif  // MOJO_PUBLIC_CPP_BINDINGS_LIB_INTERFACE_PTR_STATE_H_