Porting the app launcher to Windows, and adding an experimental flag...

chrome/browser/views/info_bubble.cc

 // Copyright (c) 2010 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/views/info_bubble.h"
 
 #include "app/gfx/canvas.h"
 #include "base/keyboard_codes.h"
 #include "chrome/browser/views/bubble_border.h"
 #include "chrome/browser/window_sizer.h"
@@ skipping 246 matching lines @@
   // (e.g. calling SetChecked() on checkboxes is safe).
   SetContentsView(contents_view);
   // Adding |contents| as a child has to be done before we call
   // contents->GetPreferredSize() below, since some supplied views don't
   // actually initialize themselves until they're added to a hierarchy.
   contents_view->AddChildView(contents);
 
   // Calculate and set the bounds for all windows and views.
   gfx::Rect window_bounds;
 
-  bool prefer_arrow_on_right =
+  bool prefer_arrow_on_right = delegate &&
       (contents->UILayoutIsRightToLeft() == delegate->PreferOriginSideAnchor());
 
 #if defined(OS_WIN)
   border_.reset(new BorderWidget);
   // Initialize and position the border window.
   window_bounds = border_->InitAndGetBounds(GetNativeView(),
       position_relative_to, contents->GetPreferredSize(),
       prefer_arrow_on_right);
 
   // Make |contents| take up the entire contents view.
@@ skipping 69 matching lines @@
 #endif
 }
 
 bool InfoBubble::AcceleratorPressed(const views::Accelerator& accelerator) {
   if (!delegate_ || delegate_->CloseOnEscape()) {
     Close(true);
     return true;
   }
   return false;
 }