[Mac] In modal JS dialogs with text fields, disable line breaks and just overflow the text box.

chrome/browser/ui/cocoa/js_modal_dialog_cocoa.mm

-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// 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/js_modal_dialog_cocoa.h"
 
 #import <Cocoa/Cocoa.h>
 
 #include "app/l10n_util_mac.h"
 #include "app/message_box_flags.h"
 #include "base/logging.h"
@@ skipping 22 matching lines @@
 
 @implementation JavaScriptAppModalDialogHelper
 
 - (NSAlert*)alert {
   alert_ = [[NSAlert alloc] init];
   return alert_;
 }
 
 - (NSTextField*)textField {
   textField_ = [[NSTextField alloc] initWithFrame:NSMakeRect(0, 0, 300, 22)];
+  [[textField_ cell] setLineBreakMode:NSLineBreakByTruncatingTail];
   [alert_ setAccessoryView:textField_];
   [textField_ release];
 
   return textField_;
 }
 
 - (void)dealloc {
   [alert_ release];
   [super dealloc];
 }
@@ skipping 156 matching lines @@
 
 ////////////////////////////////////////////////////////////////////////////////
 // NativeAppModalDialog, public:
 
 // static
 NativeAppModalDialog* NativeAppModalDialog::CreateNativeJavaScriptPrompt(
     JavaScriptAppModalDialog* dialog,
     gfx::NativeWindow parent_window) {
   return new JSModalDialogCocoa(dialog);
 }