Handful of related instant changes:

chrome/browser/instant/instant_opt_in.cc

Index: chrome/browser/instant/instant_opt_in.cc
diff --git a/chrome/browser/instant/instant_opt_in.cc b/chrome/browser/instant/instant_opt_in.cc
deleted file mode 100644
index 02db5c5cb02a2ef91cb63221b4f10e4e329868cd..0000000000000000000000000000000000000000
--- a/chrome/browser/instant/instant_opt_in.cc
+++ /dev/null
@@ -1,33 +0,0 @@
-// 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/instant/instant_opt_in.h"
-
-#include "base/command_line.h"
-#include "chrome/browser/instant/instant_confirm_dialog.h"
-#include "chrome/browser/profile.h"
-#include "chrome/common/chrome_switches.h"
-
-namespace browser {
-
-static bool dialog_shown = false;
-
-bool ShouldShowInstantOptIn(Profile* profile) {
-  if (!CommandLine::ForCurrentProcess()->HasSwitch(switches::kShowInstantOptIn))
-    return false;
-
-  // TODO(sky): implement me.
-  return !dialog_shown;
-}
-
-void UserPickedInstantOptIn(gfx::NativeWindow parent,
-                            Profile* profile,
-                            bool opt_in) {
-  // TODO: set pref so don't show opt-in again.
-  dialog_shown = true;
-  if (opt_in)
-    browser::ShowInstantConfirmDialogIfNecessary(parent, profile);
-}
-
-}  // namespace browser