Use Titlebar instead of TitleBar consistently in panels code.

chrome/browser/ui/panels/panel_manager.h

 // 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.
 
 #ifndef CHROME_BROWSER_UI_PANELS_PANEL_MANAGER_H_
 #define CHROME_BROWSER_UI_PANELS_PANEL_MANAGER_H_
 #pragma once
 
 #include <vector>
 #include "base/basictypes.h"
@@ skipping 21 matching lines @@
 
   void Remove(Panel* panel);
   void RemoveAll();
 
   // Drags the given panel.
   void StartDragging(Panel* panel);
   void Drag(int delta_x);
   void EndDragging(bool cancelled);
 
   // Should we bring up the titlebar, given the current mouse point?
-  bool ShouldBringUpTitleBarForAllMinimizedPanels(int mouse_x,
+  bool ShouldBringUpTitlebarForAllMinimizedPanels(int mouse_x,
                                                   int mouse_y) const;
 
   // Brings up or down the title-bar for all minimized panels.
-  void BringUpOrDownTitleBarForAllMinimizedPanels(bool bring_up);
+  void BringUpOrDownTitlebarForAllMinimizedPanels(bool bring_up);
 
   int num_panels() const { return panels_.size(); }
 
  private:
   friend class PanelBrowserTest;
 
   typedef std::vector<Panel*> Panels;
 
   PanelManager();
 
@@ skipping 51 matching lines @@
 
   // Bounds of the panel to drag. It is first set to the original bounds when
   // the dragging happens. Then it is updated to the position that will be set
   // to when the dragging ends.
   gfx::Rect dragging_panel_bounds_;
 
   DISALLOW_COPY_AND_ASSIGN(PanelManager);
 };
 
 #endif  // CHROME_BROWSER_UI_PANELS_PANEL_MANAGER_H_