Use Titlebar instead of TitleBar consistently in panels code.

chrome/browser/ui/panels/panel_mouse_watcher_win.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 "chrome/browser/ui/panels/panel_mouse_watcher_win.h"
 
 #include "base/logging.h"
 #include "base/scoped_ptr.h"
 #include "chrome/browser/ui/panels/panel.h"
 #include "chrome/browser/ui/panels/panel_manager.h"
@@ skipping 52 matching lines @@
     if (hook_struct)
       mouse_watcher->OnMouseAction(hook_struct->pt.x, hook_struct->pt.y);
   }
   return ::CallNextHookEx(NULL, code, wparam, lparam);
 }
 
 void PanelMouseWatcherWin::OnMouseAction(int mouse_x, int mouse_y) {
   PanelManager* panel_manager = PanelManager::GetInstance();
 
   bool bring_up_titlebar =
-      panel_manager->ShouldBringUpTitleBarForAllMinimizedPanels(
+      panel_manager->ShouldBringUpTitlebarForAllMinimizedPanels(
           mouse_x, mouse_y);
   if (bring_up_titlebar == bring_up_titlebar_)
     return;
   bring_up_titlebar_ = bring_up_titlebar;
 
-  panel_manager->BringUpOrDownTitleBarForAllMinimizedPanels(bring_up_titlebar);
+  panel_manager->BringUpOrDownTitlebarForAllMinimizedPanels(bring_up_titlebar);
 }
 
 }
 
 void EnsureMouseWatcherStarted() {
   if (!mouse_watcher.get())
     mouse_watcher.reset(new PanelMouseWatcherWin());
 }
 
 void StopMouseWatcher() {
   mouse_watcher.reset(NULL);
 }
 
 bool IsMouseWatcherStarted() {
   return mouse_watcher.get() != NULL;
 }