Use Titlebar instead of TitleBar consistently in panels code.

chrome/browser/ui/panels/panel_browser_window_cocoa.mm

Index: chrome/browser/ui/panels/panel_browser_window_cocoa.mm
diff --git a/chrome/browser/ui/panels/panel_browser_window_cocoa.mm b/chrome/browser/ui/panels/panel_browser_window_cocoa.mm
index 57240f73385a80e9140337c11ed9c8943c2b0432..a6369c097035d9df57159656c7ff6c9001dde627 100644
--- a/chrome/browser/ui/panels/panel_browser_window_cocoa.mm
+++ b/chrome/browser/ui/panels/panel_browser_window_cocoa.mm
@@ -91,7 +91,7 @@ void PanelBrowserWindowCocoa::OnPanelExpansionStateChanged(
   NOTIMPLEMENTED();
 }
 
-bool PanelBrowserWindowCocoa::ShouldBringUpPanelTitleBar(int mouse_x,
+bool PanelBrowserWindowCocoa::ShouldBringUpPanelTitlebar(int mouse_x,
                                                          int mouse_y) const {
   NOTIMPLEMENTED();
   return false;
@@ -128,7 +128,7 @@ gfx::NativeWindow PanelBrowserWindowCocoa::GetNativePanelHandle() {
   return [controller_ window];
 }
 
-void PanelBrowserWindowCocoa::UpdatePanelTitleBar() {
+void PanelBrowserWindowCocoa::UpdatePanelTitlebar() {

[jianli, 2011/08/12 21:34:51]

ditto.

[prasadt, 2011/08/12 21:59:30]

Done.

   NOTIMPLEMENTED();
 }