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

chrome/browser/ui/panels/docked_panel_strip.cc

Index: chrome/browser/ui/panels/docked_panel_strip.cc
diff --git a/chrome/browser/ui/panels/docked_panel_strip.cc b/chrome/browser/ui/panels/docked_panel_strip.cc
index 3d96af695ec0409961a9486fa43495ea9a8522da..6843254f0741f23aff690ce072dd42d2aa8eba7c 100644
--- a/chrome/browser/ui/panels/docked_panel_strip.cc
+++ b/chrome/browser/ui/panels/docked_panel_strip.cc
@@ -473,11 +473,13 @@ void DockedPanelStrip::OnPanelAttentionStateChanged(Panel* panel) {
 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) {