Linux Aura: Added --use-system-title-bar flag.

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

 // Copyright (c) 2013 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/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"
 
 ///////////////////////////////////////////////////////////////////////////////
 // OpaqueBrowserFrameViewLinux, public:
 
 OpaqueBrowserFrameViewLinux::OpaqueBrowserFrameViewLinux(
     OpaqueBrowserFrameView* view,
     OpaqueBrowserFrameViewLayout* layout)
     : view_(view),
       layout_(layout) {
   views::LinuxUI* ui = views::LinuxUI::instance();
   if (ui)
     ui->AddWindowButtonOrderObserver(this);
 }
 
 OpaqueBrowserFrameViewLinux::~OpaqueBrowserFrameViewLinux() {
   views::LinuxUI* ui = views::LinuxUI::instance();
   if (ui)
     ui->RemoveWindowButtonOrderObserver(this);
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 // OpaqueBrowserFrameViewLinux,
 //     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();
   return !(view_->IsMaximized() && ui && ui->UnityIsRunning());
 }
 
 bool OpaqueBrowserFrameViewLinux::ShouldShowTitleBar() const {
   // On Ubuntu Unity, if the window is maximized, the system will provide
   // a title bar, so Chrome should not add its own.
   views::LinuxUI* ui = views::LinuxUI::instance();
@@ skipping 21 matching lines @@
 ///////////////////////////////////////////////////////////////////////////////
 // OpaqueBrowserFrameViewObserver:
 
 // static
 OpaqueBrowserFrameViewPlatformSpecific*
 OpaqueBrowserFrameViewPlatformSpecific::Create(
       OpaqueBrowserFrameView* view,
       OpaqueBrowserFrameViewLayout* layout) {
   return new OpaqueBrowserFrameViewLinux(view, layout);
 }