ash: Disable window caption buttons in immersive mode

chrome/browser/ui/views/frame/browser_non_client_frame_view_ash.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/views/frame/browser_non_client_frame_view_ash.h"
 
 #include "ash/wm/frame_painter.h"
 #include "ash/wm/workspace/frame_maximize_button.h"
 #include "chrome/browser/themes/theme_service.h"
 #include "chrome/browser/ui/browser.h"
@@ skipping 179 matching lines @@
   }
   return hit_test;
 }
 
 void BrowserNonClientFrameViewAsh::GetWindowMask(const gfx::Size& size,
                                                   gfx::Path* window_mask) {
   // Aura does not use window masks.
 }
 
 void BrowserNonClientFrameViewAsh::ResetWindowControls() {
+  // Hide the caption buttons in immersive mode because it's confusing when
+  // the user hovers or clicks in the top-right of the screen and hits one.
+  // Only show them during a reveal.
+  ImmersiveModeController* controller =
+      browser_view()->immersive_mode_controller();
+  bool show_buttons = !controller->enabled() || controller->IsRevealed();
+  immersive_button_->SetVisible(show_buttons);
+  size_button_->SetVisible(show_buttons);
+  close_button_->SetVisible(show_buttons);
+
   size_button_->SetState(views::CustomButton::STATE_NORMAL);
   // The close button isn't affected by this constraint.
 }
 
 void BrowserNonClientFrameViewAsh::UpdateWindowIcon() {
   if (window_icon_)
     window_icon_->SchedulePaint();
 }
 
 void BrowserNonClientFrameViewAsh::UpdateWindowTitle() {
@@ skipping 285 matching lines @@
 BrowserNonClientFrameViewAsh::GetThemeFrameOverlayImage() const {
   ui::ThemeProvider* tp = GetThemeProvider();
   if (tp->HasCustomImage(IDR_THEME_FRAME_OVERLAY) &&
       browser_view()->IsBrowserTypeNormal() &&
       !browser_view()->IsOffTheRecord()) {
     return tp->GetImageSkiaNamed(ShouldPaintAsActive() ?
         IDR_THEME_FRAME_OVERLAY : IDR_THEME_FRAME_OVERLAY_INACTIVE);
   }
   return NULL;
 }