Remove IPC::Endpoint.

ipc/ipc_channel_reader.h

 // Copyright (c) 2012 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 IPC_IPC_CHANNEL_READER_H_
 #define IPC_IPC_CHANNEL_READER_H_
 
 #include <stddef.h>
 
 #include <set>
@@ skipping 97 matching lines @@
   // Performs post-dispatch checks. Called when all input buffers are empty,
   // though there could be more data ready to be read from the OS.
   virtual bool DidEmptyInputBuffers() = 0;
 
   // Handles internal messages, like the hello message sent on channel startup.
   virtual void HandleInternalMessage(const Message& msg) = 0;
 
   // Exposed for testing purposes only.
   virtual void DispatchMessage(Message* m);
 
-  // Get the process ID for the sender of the message.
-  virtual base::ProcessId GetSenderPID() = 0;
-
  private:
   FRIEND_TEST_ALL_PREFIXES(ChannelReaderTest, AttachmentAlreadyBrokered);
   FRIEND_TEST_ALL_PREFIXES(ChannelReaderTest, AttachmentNotYetBrokered);
   FRIEND_TEST_ALL_PREFIXES(ChannelReaderTest, ResizeOverflowBuffer);
   FRIEND_TEST_ALL_PREFIXES(ChannelReaderTest, InvalidMessageSize);
   FRIEND_TEST_ALL_PREFIXES(ChannelReaderTest, TrimBuffer);
 
   // Takes the data received from the IPC channel and translates it into
   // Messages. Complete messages are passed to HandleTranslatedMessage().
   // Returns |false| on unrecoverable error.
@@ skipping 32 matching lines @@
   // of std::string::reserve() implementation.
   size_t max_input_buffer_size_;
 
   DISALLOW_COPY_AND_ASSIGN(ChannelReader);
 };
 
 }  // namespace internal
 }  // namespace IPC
 
 #endif  // IPC_IPC_CHANNEL_READER_H_