[Panel refactor] Deprecate old panels.

chrome/browser/ui/panels/panel_cocoa.mm

Index: chrome/browser/ui/panels/panel_cocoa.mm
diff --git a/chrome/browser/ui/panels/panel_cocoa.mm b/chrome/browser/ui/panels/panel_cocoa.mm
index 4fbdb0224fd220e47ca7df64716a8d12f2b9ce6f..2ba9033db47c593fc97cb6ae80eda9ecfe0330d9 100644
--- a/chrome/browser/ui/panels/panel_cocoa.mm
+++ b/chrome/browser/ui/panels/panel_cocoa.mm
@@ -156,11 +156,6 @@ void PanelCocoa::UpdatePanelLoadingAnimations(bool should_animate) {
   [controller_ updateThrobber:should_animate];
 }
 
-FindBar* PanelCocoa::CreatePanelFindBar() {
-  NOTREACHED();  // legacy API from browser window. N/A for refactored panels.
-  return NULL;
-}
-
 void PanelCocoa::NotifyPanelOnUserChangedTheme() {
   NOTIMPLEMENTED();
 }
@@ -203,12 +198,6 @@ bool PanelCocoa::IsDrawingAttention() const {
   return [titlebar isDrawingAttention];
 }
 
-bool PanelCocoa::PreHandlePanelKeyboardEvent(
-    const NativeWebKeyboardEvent& event, bool* is_keyboard_shortcut) {
-  // No need to prehandle as no keys are reserved.
-  return false;
-}
-
 void PanelCocoa::HandlePanelKeyboardEvent(
     const NativeWebKeyboardEvent& event) {
   if (event.skip_in_browser || event.type == NativeWebKeyboardEvent::Char)
@@ -225,15 +214,6 @@ void PanelCocoa::FullScreenModeChanged(
   [controller_ fullScreenModeChanged:is_full_screen];
 }
 
-Browser* PanelCocoa::GetPanelBrowser() const {
-  NOTREACHED();  // legacy API from BrowserWindow. N/A for refactored panels.
-  return NULL;
-}
-
-void PanelCocoa::EnsurePanelFullyVisible() {
-  [controller_ ensureFullyVisible];
-}
-
 void PanelCocoa::SetPanelAlwaysOnTop(bool on_top) {
   [controller_ updateWindowLevel];
 }