Make panels turn on or off shadow effect.

chrome/browser/ui/panels/panel.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/panels/panel.h"
 
 #include "base/logging.h"
 #include "base/message_loop.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/app/chrome_command_ids.h"
@@ skipping 288 matching lines @@
 
 void Panel::Minimize() {
   if (collection_)
     collection_->MinimizePanel(this);
 }
 
 bool Panel::IsMinimizedBySystem() const {
   return native_panel_->IsPanelMinimizedBySystem();
 }
 
+void Panel::ShowShadow(bool show) {
+  native_panel_->ShowShadow(show);
+}
+
 void Panel::Restore() {
   if (collection_)
     collection_->RestorePanel(this);
 }
 
 void Panel::SetBounds(const gfx::Rect& bounds) {
   // Ignore bounds position as the panel manager controls all positioning.
   if (!collection_)
     return;
   collection_->ResizePanelWindow(this, bounds.size());
@@ skipping 560 matching lines @@
 
 // static
 void Panel::FormatTitleForDisplay(string16* title) {
   size_t current_index = 0;
   size_t match_index;
   while ((match_index = title->find(L'\n', current_index)) != string16::npos) {
     title->replace(match_index, 1, string16());
     current_index = match_index;
   }
 }