Logging: pass logging related cmd line options to utility process

content/browser/browser_child_process_host_impl.cc

 // Copyright (c) 2012 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 "content/browser/browser_child_process_host_impl.h"
 
+#include "base/base_switches.h"
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/file_path.h"
 #include "base/lazy_instance.h"
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
 #include "base/path_service.h"
 #include "base/process_util.h"
 #include "base/stl_util.h"
 #include "base/string_util.h"
@@ skipping 97 matching lines @@
 #elif defined(OS_POSIX)
     bool use_zygote,
     const base::EnvironmentVector& environ,
 #endif
     CommandLine* cmd_line) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 
   content::GetContentClient()->browser()->AppendExtraCommandLineSwitches(
       cmd_line, data_.id);
 
+  const CommandLine& browser_command_line = *CommandLine::ForCurrentProcess();
+  static const char* kForwardSwitches[] = {

[piman, 2012/10/17 06:10:25]

nit: can you add:
#if defined(OS_POSIX)
    switches::kChildCleanExit,
#endif

here, and remove the corresponding code below?

[qiankun, 2012/10/17 09:47:37]

Done.

+    switches::kDisableLogging,
+    switches::kEnableDCHECK,
+    switches::kEnableLogging,
+    switches::kLoggingLevel,
+    switches::kV,
+    switches::kVModule,
+  };
+  cmd_line->CopySwitchesFrom(browser_command_line, kForwardSwitches,
+                             arraysize(kForwardSwitches));
+
+
 #if defined(OS_POSIX)
   if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kChildCleanExit))
     cmd_line->AppendSwitch(switches::kChildCleanExit);
 #endif
 
   child_process_.reset(new ChildProcessLauncher(
 #if defined(OS_WIN)
       exposed_dir,
 #elif defined(OS_POSIX)
       use_zygote,
@@ skipping 122 matching lines @@
 }
 
 void BrowserChildProcessHostImpl::OnProcessLaunched() {
   if (!child_process_->GetHandle()) {
     delete delegate_;  // Will delete us
     return;
   }
   data_.handle = child_process_->GetHandle();
   delegate_->OnProcessLaunched();
 }