Remove no-longer-needed IsBusy...() stuff.

mojo/edk/system/data_pipe.h

 // Copyright 2013 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_EDK_SYSTEM_DATA_PIPE_H_
 #define MOJO_EDK_SYSTEM_DATA_PIPE_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 110 matching lines @@
   void ProducerRemoveAwakable(Awakable* awakable,
                               HandleSignalsState* signals_state);
   void ProducerStartSerialize(Channel* channel,
                               size_t* max_size,
                               size_t* max_platform_handles);
   bool ProducerEndSerialize(
       Channel* channel,
       void* destination,
       size_t* actual_size,
       std::vector<platform::ScopedPlatformHandle>* platform_handles);
-  bool ProducerIsBusy() const;
 
   // These are called by the consumer dispatcher to implement its methods of
   // corresponding names.
   void ConsumerCancelAllState();
   void ConsumerClose();
   MojoResult ConsumerSetOptions(uint32_t read_threshold_num_bytes);
   void ConsumerGetOptions(uint32_t* read_threshold_num_bytes);
   // This does not validate its arguments, except to check that |*num_bytes| is
   // a multiple of |element_num_bytes_|.
   MojoResult ConsumerReadData(UserPointer<void> elements,
@@ skipping 14 matching lines @@
   void ConsumerRemoveAwakable(Awakable* awakable,
                               HandleSignalsState* signals_state);
   void ConsumerStartSerialize(Channel* channel,
                               size_t* max_size,
                               size_t* max_platform_handles);
   bool ConsumerEndSerialize(
       Channel* channel,
       void* destination,
       size_t* actual_size,
       std::vector<platform::ScopedPlatformHandle>* platform_handles);
-  bool ConsumerIsBusy() const;
 
   // The following are only to be used by |DataPipeImpl| (and its subclasses):
 
   // Replaces |impl_| with |new_impl| (which must not be null). For use when
   // serializing data pipe dispatchers (i.e., in |ProducerEndSerialize()| and
   // |ConsumerEndSerialize()|). Returns the old value of |impl_| (in case the
   // caller needs to manage its lifetime).
   std::unique_ptr<DataPipeImpl> ReplaceImplNoLock(
       std::unique_ptr<DataPipeImpl> new_impl)
       MOJO_EXCLUSIVE_LOCKS_REQUIRED(mutex_);
@@ skipping 130 matching lines @@
   uint32_t consumer_two_phase_max_num_bytes_read_ MOJO_GUARDED_BY(mutex_);
   std::unique_ptr<DataPipeImpl> impl_ MOJO_GUARDED_BY(mutex_);
 
   MOJO_DISALLOW_COPY_AND_ASSIGN(DataPipe);
 };
 
 }  // namespace system
 }  // namespace mojo
 
 #endif  // MOJO_EDK_SYSTEM_DATA_PIPE_H_