Move full-screen detection logic from PanelManager to DisplaySettingsProvider.

chrome/browser/ui/panels/docked_panel_strip.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/panels/docked_panel_strip.h"
 
 #include <algorithm>
 #include <vector>
 
 #include "base/auto_reset.h"
@@ skipping 43 matching lines @@
 
 DockedPanelStrip::DockedPanelStrip(PanelManager* panel_manager)
     : PanelStrip(PanelStrip::DOCKED),
       panel_manager_(panel_manager),
       minimized_panel_count_(0),
       are_titlebars_up_(false),
       minimizing_all_(false),
       delayed_titlebar_action_(NO_ACTION),
       titlebar_action_factory_(this) {
   dragging_panel_current_iterator_ = panels_.end();
-  panel_manager_->display_settings_provider()->set_desktop_bar_observer(this);
+  panel_manager_->display_settings_provider()->AddDesktopBarObserver(this);
 }
 
 DockedPanelStrip::~DockedPanelStrip() {
   DCHECK(panels_.empty());
   DCHECK(panels_in_temporary_layout_.empty());
   DCHECK_EQ(0, minimized_panel_count_);
+  panel_manager_->display_settings_provider()->RemoveDesktopBarObserver(this);
 }
 
 void DockedPanelStrip::SetDisplayArea(const gfx::Rect& display_area) {
   if (display_area_ == display_area)
     return;
 
   gfx::Rect old_area = display_area_;
   display_area_ = display_area;
 
   if (panels_.empty())
@@ skipping 803 matching lines @@
   int max_panel_width = GetMaxPanelWidth();
   int max_panel_height = GetMaxPanelHeight();
   panel->SetSizeRange(gfx::Size(kPanelMinWidth, kPanelMinHeight),
                       gfx::Size(max_panel_width, max_panel_height));
 
   panel->set_attention_mode(Panel::USE_PANEL_ATTENTION);
   panel->SetAppIconVisibility(true);
   panel->SetAlwaysOnTop(true);
   panel->EnableResizeByMouse(true);
 }