win: Implement CrashpadClient::StartHandler()

util/win/command_line.h

+// 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.
+
+#ifndef CRASHPAD_UTIL_WIN_COMMAND_LINE_H_
+#define CRASHPAD_UTIL_WIN_COMMAND_LINE_H_
+
+#include <string>
+
+namespace crashpad {
+
+//! \brief Utility function for building escaped command lines.
+//!

[scottmg, 2015/10/30 23:16:31]

Note that it adds a space to separate arguments.

+//! \param[in] argument Appended to \a command_line surrounded by properly
+//!     escaped quotation marks, if necessary.
+//! \param[inout] command_line The command line being constructed.
+void AppendCommandLineArgument(const std::wstring& argument,
+                               std::wstring* command_line);
+
+}  // namespace crashpad
+
+#endif  // CRASHPAD_UTIL_WIN_COMMAND_LINE_H_