Simplify threading in browser thread by making only ChromeThread deal with di...

chrome/browser/plugin_process_host.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 "build/build_config.h"
 
 #include "chrome/browser/plugin_process_host.h"
 
 #if defined(OS_WIN)
 #include <windows.h>
@@ skipping 320 matching lines @@
        window_index++) {
     PostMessage(*window_index, WM_CLOSE, 0, 0);
   }
 #elif defined(OS_MACOSX)
   // If the plugin process crashed but had fullscreen windows open at the time,
   // make sure that the menu bar is visible.
   std::set<uint32>::iterator window_index;
   for (window_index = plugin_fullscreen_windows_set_.begin();
        window_index != plugin_fullscreen_windows_set_.end();
        window_index++) {
-    if (MessageLoop::current() ==
-        ChromeThread::GetMessageLoop(ChromeThread::UI)) {
+    if (ChromeThread::CurrentlyOn(ChromeThread::UI)) {
       mac_util::ReleaseFullScreen();
     } else {
-      ChromeThread::GetMessageLoop(ChromeThread::UI)->PostTask(FROM_HERE,
+      ChromeThread::PostTask(
+          ChromeThread::UI, FROM_HERE,
           NewRunnableFunction(mac_util::ReleaseFullScreen));
     }
   }
 #endif
 }
 
 bool PluginProcessHost::Init(const WebPluginInfo& info,
                              const std::wstring& locale) {
   info_ = info;
   set_name(info_.name);
@@ skipping 307 matching lines @@
     return;
   }
 
   // TODO(iyengar)  Add the plumbing to retrieve the default
   // plugin finder URL.
   *plugin_finder_url = kDefaultPluginFinderURL;
 }
 
 void PluginProcessHost::OnPluginMessage(
     const std::vector<uint8>& data) {
-  DCHECK(MessageLoop::current() ==
-         ChromeThread::GetMessageLoop(ChromeThread::IO));
+  DCHECK(ChromeThread::CurrentlyOn(ChromeThread::IO));
 
   ChromePluginLib *chrome_plugin = ChromePluginLib::Find(info_.path);
   if (chrome_plugin) {
     void *data_ptr = const_cast<void*>(reinterpret_cast<const void*>(&data[0]));
     uint32 data_len = static_cast<uint32>(data.size());
     chrome_plugin->functions().on_message(data_ptr, data_len);
   }
 }