Implement the new first run bubble, clean up old bubbles.

chrome/browser/ui/cocoa/first_run_bubble_controller.mm

-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// 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/cocoa/first_run_bubble_controller.h"
 
 #include "base/logging.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/search_engines/util.h"
+#include "chrome/browser/ui/browser_list.h"
 #import "chrome/browser/ui/cocoa/l10n_util.h"
 #import "chrome/browser/ui/cocoa/info_bubble_view.h"
 #include "grit/generated_resources.h"
 #include "ui/base/l10n/l10n_util.h"
 
 @interface FirstRunBubbleController(Private)
 - (id)initRelativeToView:(NSView*)view
                   offset:(NSPoint)offset
                  profile:(Profile*)profile;
 - (void)closeIfNotKey;
@@ skipping 27 matching lines @@
     [self performSelector:@selector(closeIfNotKey) withObject:nil afterDelay:3];
   }
   return self;
 }
 
 - (void)awakeFromNib {
   DCHECK(header_);
   [header_ setStringValue:cocoa_l10n_util::ReplaceNSStringPlaceholders(
       [header_ stringValue], GetDefaultSearchEngineName(profile_), NULL)];
 
-  // Adapt window size to bottom buttons. Do this before all other layouting.
+  // Adapt window size to contents. Do this before all other layouting.
   CGFloat dy = cocoa_l10n_util::VerticallyReflowGroup([[self bubble] subviews]);
   NSSize ds = NSMakeSize(0, dy);
   ds = [[self bubble] convertSize:ds toView:nil];
 
   NSRect frame = [[self window] frame];
   frame.origin.y -= ds.height;
   frame.size.height += ds.height;
   [[self window] setFrame:frame display:YES];
 }
 
 - (void)close {
   // If the window is closed before the timer is fired, cancel the timer, since
   // it retains the controller.
   [NSObject cancelPreviousPerformRequestsWithTarget:self
                                            selector:@selector(closeIfNotKey)
                                              object:nil];
   [super close];
 }
 
 - (void)closeIfNotKey {
   if (![[self window] isKeyWindow])
     [self close];
 }
 
+- (IBAction)onChange:(id)sender {
+  Browser* browser = BrowserList::GetLastActiveWithProfile(profile_);
+  [self close];
+  if (browser)
+    browser->OpenSearchEngineOptionsDialog();
+}
+
 @end  // FirstRunBubbleController