3rd try. *sigh*...

chrome_frame/chrome_launcher.cc

 // 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.
 
 #include "chrome_frame/chrome_launcher.h"
 
 #include "base/base_switches.h"
 #include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/logging.h"
@@ skipping 69 matching lines @@
   }
 }
 
 bool SanitizeAndLaunchChrome(const wchar_t* command_line) {
   std::wstring command_line_with_program(L"dummy.exe ");
   command_line_with_program += command_line;
   CommandLine original = CommandLine::FromString(command_line_with_program);
   CommandLine sanitized(GetChromeExecutablePath());
   SanitizeCommandLine(original, &sanitized);
 
+  DLOG(INFO) << sanitized.command_line_string();
+  sanitized.AppendSwitchWithValue("log-level", "0");
+
   return base::LaunchApp(sanitized.command_line_string(), false, false, NULL);
 }
 
 FilePath GetChromeExecutablePath() {
   FilePath cur_path;
   PathService::Get(base::DIR_MODULE, &cur_path);
   cur_path = cur_path.Append(chrome::kBrowserProcessExecutableName);
 
   // The installation model for Chrome places the DLLs in a versioned
   // sub-folder one down from the Chrome executable. If we fail to find
@@ skipping 17 matching lines @@
     return ERROR_OPEN_FAILED;
   }
 }
 
 // Compile-time check to see that the type CfLaunchChromeProc is correct.
 #ifndef NODEBUG
 namespace {
 chrome_launcher::CfLaunchChromeProc cf_launch_chrome = CfLaunchChrome;
 }  // namespace
 #endif  // NODEBUG