third_party/mojo: Remove python/go/dart bindings.

third_party/mojo/src/mojo/public/go/bindings/connector.go

Index: third_party/mojo/src/mojo/public/go/bindings/connector.go
diff --git a/third_party/mojo/src/mojo/public/go/bindings/connector.go b/third_party/mojo/src/mojo/public/go/bindings/connector.go
deleted file mode 100644
index 9c4ee5a454d24c8a1faf2b6984b20d6eacceae9e..0000000000000000000000000000000000000000
--- a/third_party/mojo/src/mojo/public/go/bindings/connector.go
+++ /dev/null
@@ -1,113 +0,0 @@
-// Copyright 2015 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.
-
-package bindings
-
-import (
-	"fmt"
-	"sync"
-
-	"mojo/public/go/system"
-)
-
-var errConnectionClosed = &ConnectionError{system.MOJO_RESULT_FAILED_PRECONDITION}
-
-// ConnectionError represents a error caused by an operation on a message pipe.
-type ConnectionError struct {
-	Result system.MojoResult
-}
-
-func (e *ConnectionError) Error() string {
-	return fmt.Sprintf("message pipe error: %v", e.Result)
-}
-
-// Closed returnes true iff the error was caused by an operation on a closed
-// message pipe.
-func (e *ConnectionError) Closed() bool {
-	return e.Result == system.MOJO_RESULT_FAILED_PRECONDITION
-}
-
-// Connector owns a message pipe handle. It can read and write messages
-// from the message pipe waiting on it if necessary. The operation are
-// thread-safe.
-type Connector struct {
-	mu   sync.RWMutex // protects pipe handle
-	pipe system.MessagePipeHandle
-
-	done      chan struct{}
-	waitMutex sync.Mutex
-	waiter    AsyncWaiter
-	waitChan  chan WaitResponse
-}
-
-// NewStubConnector returns a new |Connector| instance that sends and
-// receives messages from a provided message pipe handle.
-func NewConnector(pipe system.MessagePipeHandle, waiter AsyncWaiter) *Connector {
-	return &Connector{
-		pipe:     pipe,
-		waiter:   waiter,
-		done:     make(chan struct{}),
-		waitChan: make(chan WaitResponse, 1),
-	}
-}
-
-// ReadMessage reads a message from message pipe waiting on it if necessary.
-func (c *Connector) ReadMessage() (*Message, error) {
-	// Make sure that only one goroutine at a time waits a the handle.
-	// We use separate lock so that we can send messages to the message pipe
-	// while waiting on the pipe.
-	//
-	// It is better to acquire this lock first so that a potential queue of
-	// readers will wait while closing the message pipe in case of Close()
-	// call.
-	c.waitMutex.Lock()
-	defer c.waitMutex.Unlock()
-	// Use read lock to use pipe handle without modifying it.
-	c.mu.RLock()
-	defer c.mu.RUnlock()
-
-	if !c.pipe.IsValid() {
-		return nil, errConnectionClosed
-	}
-	// Check if we already have a message.
-	result, bytes, handles := c.pipe.ReadMessage(system.MOJO_READ_MESSAGE_FLAG_NONE)
-	if result == system.MOJO_RESULT_SHOULD_WAIT {
-		waitId := c.waiter.AsyncWait(c.pipe, system.MOJO_HANDLE_SIGNAL_READABLE, c.waitChan)
-		select {
-		case <-c.waitChan:
-			result, bytes, handles = c.pipe.ReadMessage(system.MOJO_READ_MESSAGE_FLAG_NONE)
-			if result != system.MOJO_RESULT_OK {
-				return nil, &ConnectionError{result}
-			}
-		case <-c.done:
-			c.waiter.CancelWait(waitId)
-			return nil, errConnectionClosed
-		}
-	} else if result != system.MOJO_RESULT_OK {
-		return nil, &ConnectionError{result}
-	}
-	return ParseMessage(bytes, handles)
-}
-
-// WriteMessage writes a message to the message pipe.
-func (c *Connector) WriteMessage(message *Message) error {
-	// Use read lock to use pipe handle without modifying it.
-	c.mu.RLock()
-	defer c.mu.RUnlock()
-	if !c.pipe.IsValid() {
-		return errConnectionClosed
-	}
-	return WriteMessage(c.pipe, message)
-}
-
-// Close closes the message pipe aborting wait on the message pipe.
-// Panics if you try to close the |Connector| more than once.
-func (c *Connector) Close() {
-	// Stop waiting to acquire the lock.
-	close(c.done)
-	// Use write lock to modify the pipe handle.
-	c.mu.Lock()
-	c.pipe.Close()
-	c.mu.Unlock()
-}