Add always-on-top property to app windows

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

 // Copyright 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/browser_view.h"
 
 #include <algorithm>
 
 #include "base/auto_reset.h"
 #include "base/command_line.h"
@@ skipping 682 matching lines @@
 }
 
 void BrowserView::FlashFrame(bool flash) {
   frame_->FlashFrame(flash);
 }
 
 bool BrowserView::IsAlwaysOnTop() const {
   return false;
 }
 
+void BrowserView::SetAlwaysOnTop(bool always_on_top) {
+  // Not implemented for browser windows.
+  NOTIMPLEMENTED();
+}
+
 gfx::NativeWindow BrowserView::GetNativeWindow() {
   // While the browser destruction is going on, the widget can already be gone,
   // but utility functions like FindBrowserWithWindow will come here and crash.
   // We short circuit therefore.
   if (!GetWidget())
     return NULL;
   return GetWidget()->GetTopLevelWidget()->GetNativeWindow();
 }
 
 BrowserWindowTesting* BrowserView::GetBrowserWindowTesting() {
@@ skipping 1965 matching lines @@
     // The +1 in the next line creates a 1-px gap between icon and arrow tip.
     gfx::Point icon_bottom(0, location_icon_view->GetImageBounds().bottom() -
         LocationBarView::kIconInternalPadding + 1);
     ConvertPointToTarget(location_icon_view, this, &icon_bottom);
     gfx::Point infobar_top(0, infobar_container_->GetVerticalOverlap(NULL));
     ConvertPointToTarget(infobar_container_, this, &infobar_top);
     top_arrow_height = infobar_top.y() - icon_bottom.y();
   }
   return top_arrow_height;
 }