Panels refactor: Support browserless panels on Linux.

chrome/browser/ui/panels/detached_panel_browsertest.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 "base/message_loop.h"
 #include "chrome/browser/ui/panels/base_panel_browser_test.h"
 #include "chrome/browser/ui/panels/detached_panel_strip.h"
 #include "chrome/browser/ui/panels/native_panel.h"
 #include "chrome/browser/ui/panels/panel.h"
 #include "chrome/browser/ui/panels/panel_manager.h"
 
-// Refactor has only been done for Win and Mac panels so far.
-#if defined(OS_WIN) || defined(OS_MACOSX)
-
 class DetachedPanelBrowserTest : public BasePanelBrowserTest {
 };
 
 IN_PROC_BROWSER_TEST_F(DetachedPanelBrowserTest, CheckDetachedPanelProperties) {
   PanelManager* panel_manager = PanelManager::GetInstance();
   DetachedPanelStrip* detached_strip = panel_manager->detached_strip();
 
   Panel* panel = CreateDetachedPanel("1", gfx::Rect(300, 200, 250, 200));
   scoped_ptr<NativePanelTesting> panel_testing(
       CreateNativePanelTesting(panel));
@@ skipping 113 matching lines @@
   WaitForPanelActiveState(panel, SHOW_AS_INACTIVE);
 
   // Clicking on an inactive detached panel's titlebar activates it.
   test_panel->PressLeftMouseButtonTitlebar(panel->GetBounds().origin());
   test_panel->ReleaseMouseButtonTitlebar();
   WaitForPanelActiveState(panel, SHOW_AS_ACTIVE);
   EXPECT_FALSE(panel->IsMinimized());
 
   panel_manager->CloseAll();
 }
-
-#endif // OS_WIN || OS_MACOSX