Fix build on the "Linux Clang (ChromeOS dbg)" bot.

content/browser/renderer_host/render_widget_host_view_gtk.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 CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_GTK_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_GTK_H_
 #pragma once
 
 #include <gdk/gdk.h>
 
@@ skipping 51 matching lines @@
   virtual void DidBecomeSelected() OVERRIDE;
   virtual void WasHidden() OVERRIDE;
   virtual void SetSize(const gfx::Size& size) OVERRIDE;
   virtual void SetBounds(const gfx::Rect& rect) OVERRIDE;
   virtual gfx::NativeView GetNativeView() const OVERRIDE;
   virtual gfx::NativeViewId GetNativeViewId() const OVERRIDE;
   virtual void MovePluginWindows(
       const std::vector<webkit::npapi::WebPluginGeometry>& moves) OVERRIDE;
   virtual void Focus() OVERRIDE;
   virtual void Blur() OVERRIDE;
-  virtual bool HasFocus() OVERRIDE;
+  virtual bool HasFocus() const OVERRIDE;
   virtual void Show() OVERRIDE;
   virtual void Hide() OVERRIDE;
   virtual bool IsShowing() OVERRIDE;
   virtual gfx::Rect GetViewBounds() const OVERRIDE;
   virtual void UpdateCursor(const WebCursor& cursor) OVERRIDE;
   virtual void SetIsLoading(bool is_loading) OVERRIDE;
   virtual void TextInputStateChanged(ui::TextInputType type,
                                      bool can_compose_inline) OVERRIDE;
   virtual void ImeCancelComposition() OVERRIDE;
   virtual void DidUpdateBackingStore(
@@ skipping 220 matching lines @@
 
 #if defined(OS_CHROMEOS)
   // Custimized tooltip window.
   scoped_ptr<ui::TooltipWindowGtk> tooltip_window_;
 #endif  // defined(OS_CHROMEOS)
 
   ui::GtkSignalRegistrar signals_;
 };
 
 #endif  // CHROME_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_GTK_H_