Linux Aura: Hide title bar when browser windows are maximized on Unity.

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 "chrome/browser/ui/views/frame/opaque_browser_frame_view.h"
 #include "chrome/browser/ui/views/frame/opaque_browser_frame_view_layout.h"
 #include "ui/views/linux_ui/linux_ui.h"
 
@@ skipping 20 matching lines @@
 // OpaqueBrowserFrameViewLinux,
 //     OpaqueBrowserFrameViewPlatformSpecific implementation:
 
 bool OpaqueBrowserFrameViewLinux::ShouldShowCaptionButtons() const {
   // 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();
+  return !(view_->IsMaximized() && ui && ui->UnityIsRunning());
+}
+
 ///////////////////////////////////////////////////////////////////////////////
 // OpaqueBrowserFrameViewLinux,
 //     views::WindowButtonOrderObserver implementation:
 
 void OpaqueBrowserFrameViewLinux::OnWindowButtonOrderingChange(
     const std::vector<views::FrameButton>& leading_buttons,
     const std::vector<views::FrameButton>& trailing_buttons) {
   layout_->SetButtonOrdering(leading_buttons, trailing_buttons);
 
   // We can receive OnWindowButtonOrderingChange events before we've been added
   // to a Widget. We need a Widget because layout crashes due to dependencies
   // on a ui::ThemeProvider().
   if (view_->GetWidget()) {
     view_->Layout();
     view_->SchedulePaint();
   }
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 // OpaqueBrowserFrameViewObserver:
 
 // static
 OpaqueBrowserFrameViewPlatformSpecific*
 OpaqueBrowserFrameViewPlatformSpecific::Create(
       OpaqueBrowserFrameView* view,
       OpaqueBrowserFrameViewLayout* layout) {
   return new OpaqueBrowserFrameViewLinux(view, layout);
 }