Added Protector, hooked up DSE verification with error bubble.

chrome/browser/protector/protector.h

Index: chrome/browser/protector/protector.h
diff --git a/chrome/browser/protector/protector.h b/chrome/browser/protector/protector.h
new file mode 100644
index 0000000000000000000000000000000000000000..e6cbe395429a96c6c74d561b35ff0f03076511f5
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+++ b/chrome/browser/protector/protector.h
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+// 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.
+
+#ifndef CHROME_BROWSER_PROTECTOR_PROTECTOR_H_
+#define CHROME_BROWSER_PROTECTOR_PROTECTOR_H_
+#pragma once
+
+#include <string>
+#include <vector>
+
+#include "base/basictypes.h"
+#include "base/compiler_specific.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/task.h"
+#include "chrome/browser/protector/setting_change.h"
+#include "chrome/browser/protector/settings_change_global_error.h"
+
+class GURL;
+class TemplateURLService;
+
+namespace protector {
+
+// Accumulates settings changes and shows them altogether to user.
+// Owns itself and is destroyed when user accepted or discarded changes (by
+// action or by default in case bubble and menu item are ignored).
+class Protector : public SettingsChangeGlobalError::Delegate {
+ public:
+  Protector();
+
+  // Add info about single setting change to the list of changes to notify
+  // about. Does nothing if we're showing changes already.
+  void AddChange(SettingChange* change);
+
+  // Shows error bubble to user about settings changes. The result is either
+  // accept or decline of the change.
+  void NotifyUser();
+
+  // Opens a tab with specified URL in the browser window we've shown error
+  // bubble for.
+  void OpenTab(const GURL& url);
+
+  // Returns TemplateURLService for the profile we've shown error bubble
+  // for.
+  TemplateURLService* GetTemplateURLService();
+
+  // SettingsChangeGlobalError::Delegate implementation:
+  virtual void OnApplyChanges() OVERRIDE;
+  virtual void OnDiscardChanges() OVERRIDE;
+  virtual void OnDecisionTimeout() OVERRIDE;
+
+ private:
+  friend class DeleteTask<Protector>;
+
+  ~Protector();
+
+  // All changes we want to show.
+  SettingChangeVector changes_;
+
+  // Pointer to error bubble controller. Indicates if we're showing change
+  // notification to user.
+  scoped_ptr<SettingsChangeGlobalError> error_;
+
+  DISALLOW_COPY_AND_ASSIGN(Protector);
+};
+
+// Shows notification about a single setting change.
+// Passes ownership of |change| to Protector instance.
+void NotifyUserOfChange(SettingChange* change);
+
+// Signs string value with protector's key.
+std::string SignSetting(const std::string& value);
+
+}  // namespace protector
+
+#endif  // CHROME_BROWSER_PROTECTOR_PROTECTOR_H_