fix broken windows build

chrome/browser/ui/views/frame/app_panel_browser_frame_view.cc

 // Copyright (c) 2012 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/views/frame/app_panel_browser_frame_view.h"
 
 #include "base/compiler_specific.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/ui/views/frame/browser_frame.h"
 #include "chrome/browser/ui/views/frame/browser_view.h"
@@ skipping 89 matching lines @@
   NOTREACHED();
   return gfx::Rect();
 }
 
 BrowserNonClientFrameView::TabStripInsets
 AppPanelBrowserFrameView::GetTabStripInsets(bool restored) const {
   // App panels are not themed and don't need this.
   return TabStripInsets();
 }
 
+int AppPanelBrowserFrameView::GetThemeBackgroundXInset() const {
+  return 0;
+}
+
 void AppPanelBrowserFrameView::UpdateThrobber(bool running) {
   window_icon_->Update();
 }
 
 gfx::Size AppPanelBrowserFrameView::GetMinimumSize() {
   gfx::Size min_size(browser_view()->GetMinimumSize());
   int border_thickness = NonClientBorderThickness();
   min_size.Enlarge(2 * border_thickness,
                    NonClientTopBorderHeight() + border_thickness);
 
@@ skipping 384 matching lines @@
 }
 
 gfx::Rect AppPanelBrowserFrameView::CalculateClientAreaBounds(int width,
     int height) const {
   int top_height = NonClientTopBorderHeight();
   int border_thickness = NonClientBorderThickness();
   return gfx::Rect(border_thickness, top_height,
                    std::max(0, width - (2 * border_thickness)),
                    std::max(0, height - top_height - border_thickness));
 }