win: Implement CrashpadClient::StartHandler()

test/multiprocess_exec_win.cc

 // Copyright 2015 The Crashpad Authors. All rights reserved.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
 //     http://www.apache.org/licenses/LICENSE-2.0
 //
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
 #include "test/multiprocess_exec.h"
 
 #include "base/logging.h"
 #include "base/strings/utf_string_conversions.h"
 #include "gtest/gtest.h"
-#include "test/win/child_launcher.h"
+#include "util/win/command_line.h"
 
 namespace crashpad {
 namespace test {
 
 namespace internal {
 
 struct MultiprocessInfo {
   MultiprocessInfo() {}
   ScopedFileHANDLE pipe_c2p_read;
   ScopedFileHANDLE pipe_c2p_write;
@@ skipping 81 matching lines @@
 
 MultiprocessExec::~MultiprocessExec() {
 }
 
 void MultiprocessExec::PreFork() {
   ASSERT_FALSE(command_.empty());
 
   command_line_.clear();
   AppendCommandLineArgument(base::UTF8ToUTF16(command_), &command_line_);
   for (size_t i = 0; i < arguments_.size(); ++i) {
-    command_line_ += L" ";
     AppendCommandLineArgument(base::UTF8ToUTF16(arguments_[i]), &command_line_);
   }
 
   // Make pipes for child-to-parent and parent-to-child communication. Mark them
   // as inheritable via the SECURITY_ATTRIBUTES, but use SetHandleInformation to
   // ensure that the parent sides are not inherited.
   ASSERT_EQ(nullptr, info());
   set_info(new internal::MultiprocessInfo());
 
   SECURITY_ATTRIBUTES security_attributes = {0};
@@ skipping 27 matching lines @@
                        TRUE,
                        0,
                        nullptr,
                        nullptr,
                        &startup_info,
                        &info()->process_info));
 }
 
 }  // namespace test
 }  // namespace crashpad