Show avatar menu from NTP4

chrome/browser/ui/cocoa/browser_window_cocoa.mm

 // Copyright (c) 2011 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/cocoa/browser_window_cocoa.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/message_loop.h"
@@ skipping 557 matching lines @@
 
 NSWindow* BrowserWindowCocoa::window() const {
   return [controller_ window];
 }
 
 void BrowserWindowCocoa::UpdateSidebarForContents(TabContents* tab_contents) {
   if (tab_contents == browser_->GetSelectedTabContents()) {
     [controller_ updateSidebarForContents:tab_contents];
   }
 }
+
+void BrowserWindowCocoa::ShowAvatarBubble(TabContents* tab_contents,
+                                          int x, int y) {
+  NSView* view = tab_contents->GetNativeView();
+  NSPoint point = NSMakePoint(x, y);
+  point = [view convertPoint:point toView:nil];
+  point = [[view window] convertBaseToScreen:point];
+
+  // |menu| will automatically release itself on close.
+  AvatarMenuBubbleController* menu =
+      [[AvatarMenuBubbleController alloc] initWithBrowser:browser_
+                                               anchoredAt:point];
+  [menu showWindow:nil];
+}