Expose WebCore log channels on the chrome command line

chrome/browser/in_process_webkit/webkit_thread.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.
+// Copyright (c) 2011 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/browser/in_process_webkit/webkit_thread.h"
 
 #include "base/command_line.h"
 #include "chrome/browser/in_process_webkit/browser_webkitclient_impl.h"
 #include "chrome/common/chrome_switches.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebKit.h"
+#include "webkit/glue/webkit_glue.h"
 
 WebKitThread::WebKitThread() {
 }
 
 // This happens on the UI thread after the IO thread has been shut down.
 WebKitThread::~WebKitThread() {
   // We can't just check CurrentlyOn(BrowserThread::UI) because in unit tests,
   // MessageLoop::Current is sometimes NULL and other times valid and there's
   // no BrowserThread object.  Can't check that CurrentlyOn is not IO since
   // some unit tests set that BrowserThread for other checks.
@@ skipping 18 matching lines @@
 }
 
 WebKitThread::InternalWebKitThread::~InternalWebKitThread() {
   Stop();
 }
 
 void WebKitThread::InternalWebKitThread::Init() {
   DCHECK(!webkit_client_.get());
   webkit_client_.reset(new BrowserWebKitClientImpl);
   WebKit::initialize(webkit_client_.get());
+  webkit_glue::EnableWebCoreLogChannels(
+      CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
+          switches::kWebCoreLogChannels));
+
   // If possible, post initialization tasks to this thread (rather than doing
   // them now) so we don't block the UI thread any longer than we have to.
 }
 
 void WebKitThread::InternalWebKitThread::CleanUp() {
   DCHECK(webkit_client_.get());
   WebKit::shutdown();
 }