Set GTK_PATH to CHROMIUM_SAVED_GTK_PATH before launching xdg-open....

base/process_util.h

 // Copyright (c) 2009 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.
 
 // This file/namespace contains utility functions for enumerating, ending and
 // computing statistics of processes.
 
 #ifndef BASE_PROCESS_UTIL_H_
 #define BASE_PROCESS_UTIL_H_
 
 #include "base/basictypes.h"
 
 #if defined(OS_WIN)
 #include <windows.h>
 #include <tlhelp32.h>
 #elif defined(OS_LINUX)
 #include <dirent.h>
 #include <limits.h>
 #include <sys/types.h>
 #endif
 
 #include <string>
+#include <utility>
 #include <vector>
 
 #include "base/command_line.h"
 #include "base/file_path.h"
 #include "base/process.h"
 
 #if defined(OS_WIN)
 typedef PROCESSENTRY32 ProcessEntry;
 typedef IO_COUNTERS IoCounters;
 #elif defined(OS_POSIX)
@@ skipping 101 matching lines @@
 //
 // As above, if wait is true, execute synchronously. The pid will be stored
 // in process_handle if that pointer is non-null.
 //
 // Note that the first argument in argv must point to the executable filename.
 // If the filename is not fully specified, PATH will be searched.
 typedef std::vector<std::pair<int, int> > file_handle_mapping_vector;
 bool LaunchApp(const std::vector<std::string>& argv,
                const file_handle_mapping_vector& fds_to_remap,
                bool wait, ProcessHandle* process_handle);
-#endif
+#if defined(OS_LINUX)
+// Similar to above, but also (un)set environment variables in child process
+// through |environ|.
+typedef std::vector<std::pair<const char*, const char*> > environment_vector;
+bool LaunchApp(const std::vector<std::string>& argv,
+               const environment_vector& environ,
+               const file_handle_mapping_vector& fds_to_remap,
+               bool wait, ProcessHandle* process_handle);
+#endif  // defined(OS_LINUX)
+#endif  // defined(OS_POSIX)
 
 // Executes the application specified by cl. This function delegates to one
 // of the above two platform-specific functions.
 bool LaunchApp(const CommandLine& cl,
                bool wait, bool start_hidden, ProcessHandle* process_handle);
 
 // Executes the application specified by |cl| and wait for it to exit. Stores
 // the output (stdout) in |output|. Redirects stderr to /dev/null. Returns true
 // on success (application launched and exited cleanly, with exit code
 // indicating success). |output| is modified only when the function finished
@@ skipping 237 matching lines @@
 // overflow. Has no effect if the OS doesn't provide the necessary facility.
 void EnableTerminationOnHeapCorruption();
 
 // If supported on the platform, and the user has sufficent rights, increase
 // the current process's scheduling priority to a high priority.
 void RaiseProcessToHighPriority();
 
 }  // namespace base
 
 #endif  // BASE_PROCESS_UTIL_H_