Attempt to reland http://codereview.chromium.org/4928002/...

chrome/installer/util/install_util.cc

Index: chrome/installer/util/install_util.cc
===================================================================
--- chrome/installer/util/install_util.cc	(revision 66087)
+++ chrome/installer/util/install_util.cc	(working copy)
@@ -12,7 +12,6 @@
 
 #include <algorithm>
 
-#include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/logging.h"
 #include "base/path_service.h"
@@ -37,14 +36,28 @@
   return prefs;
 }
 
-bool InstallUtil::ExecuteExeAsAdmin(const std::wstring& exe,
-                                    const std::wstring& params,
-                                    DWORD* exit_code) {
+bool InstallUtil::ExecuteExeAsAdmin(const CommandLine& cmd, DWORD* exit_code) {
+  FilePath::StringType program(cmd.GetProgram().value());
+  DCHECK(!program.empty());
+  DCHECK(program[0] != '\"');
+
+  CommandLine::StringType params(cmd.command_line_string());
+  if (params[0] == '"') {
+    DCHECK_EQ('"', params[program.length() + 1]);
+    DCHECK_EQ(program, params.substr(1, program.length()));
+    params = params.substr(program.length() + 2);
+  } else {
+    DCHECK_EQ(program, params.substr(0, program.length()));
+    params = params.substr(program.length());
+  }
+
+  TrimWhitespace(params, TRIM_ALL, &params);
+
   SHELLEXECUTEINFO info = {0};
   info.cbSize = sizeof(SHELLEXECUTEINFO);
   info.fMask = SEE_MASK_NOCLOSEPROCESS;
   info.lpVerb = L"runas";
-  info.lpFile = exe.c_str();
+  info.lpFile = program.c_str();
   info.lpParameters = params.c_str();
   info.nShow = SW_SHOW;
   if (::ShellExecuteEx(&info) == FALSE)