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

chrome/browser/ui/panels/panel_window_controller_cocoa.mm

Index: chrome/browser/ui/panels/panel_window_controller_cocoa.mm
diff --git a/chrome/browser/ui/panels/panel_window_controller_cocoa.mm b/chrome/browser/ui/panels/panel_window_controller_cocoa.mm
index 5a97d7f37239776b823172d17f490cde9cbb2879..960cfb8dcfa50234a6d9eb1b16ab109a7962e7a6 100644
--- a/chrome/browser/ui/panels/panel_window_controller_cocoa.mm
+++ b/chrome/browser/ui/panels/panel_window_controller_cocoa.mm
@@ -862,29 +862,8 @@ enum {
 
 - (void)onTitlebarMouseClicked:(int)modifierFlags {
   Panel* panel = windowShim_->panel();
-  if (modifierFlags & NSShiftKeyMask) {
-    panel->OnTitlebarClicked(panel::APPLY_TO_ALL);
-    return;
-  }
-
-  // TODO(jennb): Move remaining titlebar click handling out of here.
-  // (http://crbug.com/118431)
-  PanelStrip* panelStrip = panel->panel_strip();
-  if (!panelStrip)
-    return;
-  if (panelStrip->type() == PanelStrip::DOCKED &&
-      panel->expansion_state() == Panel::EXPANDED) {
-    if ([[self titlebarView] isDrawingAttention]) {
-      // Do not minimize if the Panel is drawing attention since user
-      // most likely simply wants to reset the 'draw attention' status.
-      panel->Activate();
-      return;
-    }
-    panel->SetExpansionState(Panel::MINIMIZED);
-    // The Panel class ensures deactivation when it is minimized.
-  } else {
-    panel->Activate();
-  }
+  panel->OnTitlebarClicked((modifierFlags & NSShiftKeyMask) ?
+                           panel::APPLY_TO_ALL : panel::NO_MODIFIER);
 }
 
 - (int)titlebarHeightInScreenCoordinates {