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diff --git a/chrome/installer/util/google_chrome_distribution.h b/chrome/installer/util/google_chrome_distribution.h
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+++ b/chrome/installer/util/google_chrome_distribution.h
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+// Copyright 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// This file extends generic BrowserDistribution class to declare Google Chrome
+// specific implementation.
+
+#ifndef CHROME_INSTALLER_UTIL_GOOGLE_CHROME_DISTRIBUTION_H_
+#define CHROME_INSTALLER_UTIL_GOOGLE_CHROME_DISTRIBUTION_H_
+
+#include "chrome/installer/util/browser_distribution.h"
+#include "chrome/installer/util/util_constants.h"
+
+class GoogleChromeDistribution : public BrowserDistribution {
+ public:
+  virtual void DoPostUninstallOperations(const installer::Version& version);
+
+  virtual void DoPreUninstallOperations();
+
+  virtual std::wstring GetApplicationName();
+
+  virtual std::wstring GetInstallSubDir();
+
+  // This method generates the new value for Google Update "ap" key for Chrome
+  // based on whether we are doing incremental install (or not) and whether
+  // the install succeeded.
+  // - If install worked, remove the magic string (if present).
+  // - If incremental installer failed, append a magic string (if
+  //   not present already).
+  // - If full installer failed, still remove this magic
+  //   string (if it is present already).
+  //
+  // diff_install: tells whether this is incremental install or not.
+  // install_status: if 0, means installation was successful.
+  // value: current value of Google Update "ap" key.
+  std::wstring GetNewGoogleUpdateApKey(bool diff_install,
+      installer_util::InstallStatus status, const std::wstring& value);
+
+  virtual std::wstring GetPublisherName();
+
+  virtual int GetInstallReturnCode(
+      installer_util::InstallStatus install_status);
+
+  virtual std::wstring GetUninstallRegPath();
+
+  virtual std::wstring GetVersionKey();
+
+  virtual void UpdateDiffInstallStatus(bool system_install,
+      bool incremental_install, installer_util::InstallStatus install_status);
+
+ private:
+  friend class BrowserDistribution;
+
+  GoogleChromeDistribution() {}
+};
+
+#endif  // CHROME_INSTALLER_UTIL_GOOGLE_CHROME_DISTRIBUTION_H_