Revert 245433 "Linux Aura: Added --use-system-title-bar flag."

trunk/src/chrome/browser/ui/views/frame/opaque_browser_frame_view_linux.cc

Index: trunk/src/chrome/browser/ui/views/frame/opaque_browser_frame_view_linux.cc
===================================================================
--- trunk/src/chrome/browser/ui/views/frame/opaque_browser_frame_view_linux.cc	(revision 245469)
+++ trunk/src/chrome/browser/ui/views/frame/opaque_browser_frame_view_linux.cc	(working copy)
@@ -4,10 +4,8 @@
 
 #include "chrome/browser/ui/views/frame/opaque_browser_frame_view_linux.h"
 
-#include "base/command_line.h"
 #include "chrome/browser/ui/views/frame/opaque_browser_frame_view.h"
 #include "chrome/browser/ui/views/frame/opaque_browser_frame_view_layout.h"
-#include "chrome/common/chrome_switches.h"
 #include "ui/views/linux_ui/linux_ui.h"
 
 ///////////////////////////////////////////////////////////////////////////////
@@ -34,10 +32,6 @@
 //     OpaqueBrowserFrameViewPlatformSpecific implementation:
 
 bool OpaqueBrowserFrameViewLinux::ShouldShowCaptionButtons() const {
-  // Do not show caption buttons if the system title bar is being used.
-  if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kUseSystemTitleBar))
-    return false;
-
   // On Ubuntu Unity, if the window is maximized, the system will provide
   // caption buttons, so Chrome should not add its own.
   views::LinuxUI* ui = views::LinuxUI::instance();