Fix stylus tools palette.

ash/system/palette/palette_tray.cc

 // Copyright 2016 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 "ash/system/palette/palette_tray.h"
 
 #include "ash/public/cpp/shell_window_ids.h"
 #include "ash/resources/grit/ash_resources.h"
 #include "ash/resources/vector_icons/vector_icons.h"
 #include "ash/root_window_controller.h"
@@ skipping 10 matching lines @@
 #include "ash/system/tray/system_tray_delegate.h"
 #include "ash/system/tray/tray_bubble_wrapper.h"
 #include "ash/system/tray/tray_constants.h"
 #include "ash/system/tray/tray_container.h"
 #include "ash/system/tray/tray_popup_header_button.h"
 #include "ash/system/tray/tray_popup_item_style.h"
 #include "ash/wm_window.h"
 #include "base/metrics/histogram_macros.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/resource/resource_bundle.h"
+#include "ui/display/display.h"
 #include "ui/events/devices/input_device_manager.h"
 #include "ui/events/devices/stylus_state.h"
 #include "ui/gfx/color_palette.h"
 #include "ui/gfx/paint_vector_icon.h"
 #include "ui/views/controls/image_view.h"
 #include "ui/views/controls/label.h"
 #include "ui/views/controls/separator.h"
 #include "ui/views/layout/box_layout.h"
 #include "ui/views/layout/fill_layout.h"
 
@@ skipping 22 matching lines @@
 // Returns true if we are in a user session that can show the stylus tools.
 bool IsInUserSession() {
   SessionController* session_controller = Shell::Get()->session_controller();
   return !session_controller->IsUserSessionBlocked() &&
          session_controller->GetSessionState() ==
              session_manager::SessionState::ACTIVE &&
          Shell::Get()->system_tray_delegate()->GetUserLoginStatus() !=
              LoginStatus::KIOSK_APP;
 }
 
+// Returns true if the |palette_tray| is on an internal display or on every
+// display if requested from the command line.
+bool ShouldShowOnDisplay(PaletteTray* palette_tray) {
+  const display::Display& display =
+      WmWindow::Get(palette_tray->GetWidget()->GetNativeWindow())
+          ->GetDisplayNearestWindow();
+  return display.IsInternal() ||
+         palette_utils::IsPaletteEnabledOnEveryDisplay();
+}
+
 class TitleView : public views::View, public views::ButtonListener {
  public:
   explicit TitleView(PaletteTray* palette_tray) : palette_tray_(palette_tray) {
     // TODO(tdanderson|jdufault): Use TriView to handle the layout of the title.
     // See crbug.com/614453.
     auto* box_layout =
         new views::BoxLayout(views::BoxLayout::kHorizontal, 0, 0, 0);
     SetLayoutManager(box_layout);
 
     auto* title_label =
@@ skipping 310 matching lines @@
   if (!enabled) {
     SetVisible(false);
     palette_tool_manager_->DisableActiveTool(PaletteGroup::MODE);
   } else {
     UpdateIconVisibility();
   }
 }
 
 void PaletteTray::UpdateIconVisibility() {
   SetVisible(is_palette_enabled_ && palette_utils::HasStylusInput() &&
-             IsInUserSession());
+             ShouldShowOnDisplay(this) && IsInUserSession());
 }
 
 }  // namespace ash