Enable user resizing for docked Panels (GTK and Mac).

chrome/browser/ui/panels/detached_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/detached_panel_strip.h"
 
 #include <algorithm>
 #include "base/logging.h"
 #include "chrome/browser/ui/panels/panel_drag_controller.h"
 #include "chrome/browser/ui/panels/panel_manager.h"
@@ skipping 145 matching lines @@
                                               int delta_y) {
   gfx::Rect new_bounds(panel->GetBounds());
   new_bounds.Offset(delta_x, delta_y);
   panel->SetPanelBoundsInstantly(new_bounds);
 }
 
 void DetachedPanelStrip::EndDraggingPanelWithinStrip(Panel* panel,
                                                      bool aborted) {
 }
 
-bool DetachedPanelStrip::CanResizePanel(const Panel* panel) const {
-  return true;
+panel::Resizability DetachedPanelStrip::CanResizePanel(
+    const Panel* panel) const {
+  return panel::ALL_SIDES;
 }
 
 void DetachedPanelStrip::OnPanelResizedByMouse(Panel* panel,
                                                const gfx::Rect& new_bounds) {
   DCHECK_EQ(this, panel->panel_strip());
-  panel->set_restored_size(new_bounds.size());
   panel->SetPanelBoundsInstantly(new_bounds);
 }
 
 
 bool DetachedPanelStrip::HasPanel(Panel* panel) const {
   return panels_.find(panel) != panels_.end();
 }
 
 void DetachedPanelStrip::UpdatePanelOnStripChange(Panel* panel) {
   panel->set_attention_mode(
       static_cast<Panel::AttentionMode>(Panel::USE_PANEL_ATTENTION |
                                         Panel::USE_SYSTEM_ATTENTION));
   panel->SetAlwaysOnTop(false);
   panel->EnableResizeByMouse(true);
 }