Change Panel titlebars to activate the panel on click (rather than minimize).

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 455 matching lines @@
   } else {
     // Maybe bring down the titlebar now that panel is not drawing attention.
     if (panel->expansion_state() == Panel::TITLE_ONLY && !are_titlebars_up_)
       panel->SetExpansionState(Panel::MINIMIZED);
   }
 }
 
 void DockedPanelStrip::OnPanelTitlebarClicked(Panel* panel,
                                               panel::ClickModifier modifier) {
   DCHECK_EQ(this, panel->panel_strip());
+  if (!IsPanelMinimized(panel))
+    return;
+
   if (modifier == panel::APPLY_TO_ALL)
     ToggleMinimizeAll(panel);
-
-  // TODO(jennb): Move all other titlebar click handling here.
-  // (http://crbug.com/118431)
+  else
+    RestorePanel(panel);
 }
 
 void DockedPanelStrip::ActivatePanel(Panel* panel) {
   DCHECK_EQ(this, panel->panel_strip());
 
   // Make sure the panel is expanded when activated so the user input
   // does not go into a collapsed window.
   panel->SetExpansionState(Panel::EXPANDED);
 
   // If the layout needs to be refreshed, it will happen in response to
@@ skipping 384 matching lines @@
   // focus and another gains it.
   refresh_action_factory_.InvalidateWeakPtrs();
   MessageLoop::current()->PostDelayedTask(
       FROM_HERE,
       base::Bind(&DockedPanelStrip::RefreshLayout,
           refresh_action_factory_.GetWeakPtr()),
       base::TimeDelta::FromMilliseconds(PanelManager::AdjustTimeInterval(
           kRefreshLayoutAfterActivePanelChangeDelayMs)));
 }