Move BrowserThread to content namespace.

content/browser/plugin_process_host_mac.cc

 // 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 <Carbon/Carbon.h>
 
 #include "build/build_config.h"
 
 #include <vector>
 
 #include "base/logging.h"
 #include "base/mac/mac_util.h"
 #include "content/browser/plugin_process_host.h"
 #include "content/common/plugin_messages.h"
 #include "content/public/browser/browser_thread.h"
 #include "ui/gfx/rect.h"
 
+using content::BrowserThread;
+
 void PluginProcessHost::OnPluginSelectWindow(uint32 window_id,
                                              gfx::Rect window_rect,
                                              bool modal) {
   plugin_visible_windows_set_.insert(window_id);
   if (modal)
     plugin_modal_windows_set_.insert(window_id);
 }
 
 void PluginProcessHost::OnPluginShowWindow(uint32 window_id,
                                            gfx::Rect window_rect,
@@ skipping 74 matching lines @@
 
 void PluginProcessHost::OnPluginSetCursorVisibility(bool visible) {
   if (plugin_cursor_visible_ != visible) {
     plugin_cursor_visible_ = visible;
     BrowserThread::PostTask(
         BrowserThread::UI, FROM_HERE,
         NewRunnableFunction(base::mac::SetCursorVisibility,
                             visible));
   }
 }