Remove SimpleBroker and instead use the production broker implementation in tests.

mojo/edk/system/simple_broker.cc

-// 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.
-
-#include "mojo/edk/system/simple_broker.h"
-
-#include "base/process/process.h"
-#include "mojo/edk/embedder/platform_channel_pair.h"
-
-#if defined(OS_WIN)
-#include <windows.h>
-#endif
-
-namespace mojo {
-namespace edk {
-
-SimpleBroker::SimpleBroker() {
-}
-
-SimpleBroker::~SimpleBroker() {
-}
-
-#if defined(OS_WIN)
-void SimpleBroker::CreatePlatformChannelPair(
-    ScopedPlatformHandle* server, ScopedPlatformHandle* client) {
-  PlatformChannelPair channel_pair;
-  *server = channel_pair.PassServerHandle();
-  *client = channel_pair.PassClientHandle();
-}
-
-void SimpleBroker::HandleToToken(const PlatformHandle* platform_handles,
-                                 size_t count,
-                                 uint64_t* tokens) {
-  // Since we're not sure which process might ultimately deserialize the message
-  // we can't duplicate the handle now. Instead, write the process ID and handle
-  // now and let the receiver duplicate it.
-  uint32_t current_process_id = base::GetCurrentProcId();
-  for (size_t i = 0; i < count; ++i) {
-    tokens[i] = current_process_id;
-    tokens[i] = tokens[i] << 32;
-    // Windows HANDLES are always 32 bit per
-    // https://msdn.microsoft.com/en-us/library/windows/desktop/aa384203(v=vs.85).aspx
-#if defined(_WIN64)
-    tokens[i] |= static_cast<int32_t>(
-        reinterpret_cast<int64_t>(platform_handles[i].handle));
-#else
-    tokens[i] |= reinterpret_cast<int32_t>(platform_handles[i].handle);
-#endif
-  }
-}
-
-void SimpleBroker::TokenToHandle(const uint64_t* tokens,
-                                 size_t count,
-                                 PlatformHandle* handles) {
-  for (size_t i = 0; i < count; ++i) {
-    DWORD pid = tokens[i] >> 32;
-#if defined(_WIN64)
-    // Sign-extend to preserve INVALID_HANDLE_VALUE.
-    HANDLE source_handle = reinterpret_cast<HANDLE>(
-        static_cast<int64_t>(static_cast<int32_t>(tokens[i] & 0xFFFFFFFF)));
-#else
-    HANDLE source_handle = reinterpret_cast<HANDLE>(tokens[i] & 0xFFFFFFFF);
-#endif
-    base::Process sender =
-        base::Process::OpenWithAccess(pid, PROCESS_DUP_HANDLE);
-    handles[i] = PlatformHandle();
-    if (!sender.IsValid()) {
-      // Sender died.
-    } else {
-      BOOL dup_result = DuplicateHandle(
-          sender.Handle(), source_handle,
-          base::GetCurrentProcessHandle(), &handles[i].handle, 0,
-          FALSE, DUPLICATE_SAME_ACCESS | DUPLICATE_CLOSE_SOURCE);
-      DCHECK(dup_result);
-    }
-  }
-}
-#endif
-
-}  // namespace edk
-}  // namespace mojo