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

chrome/browser/ui/panels/panel_titlebar_view_cocoa.mm

 // 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.
 
 #import "chrome/browser/ui/panels/panel_titlebar_view_cocoa.h"
 
 #include <Carbon/Carbon.h>  // kVK_Escape
 #import <Cocoa/Cocoa.h>
 
 #include "base/logging.h"
@@ skipping 44 matching lines @@
 }
 
 @implementation PanelTitlebarOverlayView
 // Sometimes we do not want to bring chrome window to foreground when we click
 // on any part of the titlebar. To do this, we first postpone the window
 // reorder here (shouldDelayWindowOrderingForEvent is called during when mouse
 // button is pressed but before mouseDown: is dispatched) and then complete
 // canceling the reorder by [NSApp preventWindowOrdering] in mouseDown handler
 // of this view.
 - (BOOL)shouldDelayWindowOrderingForEvent:(NSEvent*)theEvent {
-  disableReordering_ = ![controller_ isActivationByClickingTitlebarEnabled];
+  disableReordering_ = ![controller_ canBecomeKeyWindow];
   return disableReordering_;
 }
 
 - (void)mouseDown:(NSEvent*)event {
   if (disableReordering_)
     [NSApp preventWindowOrdering];
   disableReordering_ = NO;
   // Continue bubbling the event up the chain of responders.
   [super mouseDown:event];
 }
@@ skipping 554 matching lines @@
 - (void)cancelDragTitlebar {
   [self endDrag:YES];
 }
 
 - (void)finishDragTitlebar {
   [self endDrag:NO];
 }
 
 @end