Bugfixes for recent PluginGroup refactoring.

base/version.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 "base/version.h"
 
+#include <algorithm>
+
 #include "base/logging.h"
 #include "base/string_number_conversions.h"
 #include "base/string_split.h"
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
 
 // static
 Version* Version::GetVersionFromString(const std::wstring& version_str) {
   if (!IsStringASCII(version_str))
     return NULL;
   return GetVersionFromString(WideToUTF8(version_str));
 }
 
 // static
 Version* Version::GetVersionFromString(const std::string& version_str) {
   Version* vers = new Version();
   if (vers->InitFromString(version_str)) {
     DCHECK(vers->is_valid_);
     return vers;
   }
   delete vers;
   return NULL;
 }
 
 Version::Version() : is_valid_(false) {}
 
 Version::~Version() {}
 
+Version* Version::Clone() const {
+  DCHECK(is_valid_);
+  Version* copy = new Version();
+  copy->components_ = components_;
+  copy->is_valid_ = true;
+  return copy;
+}
+
 bool Version::Equals(const Version& that) const {
   DCHECK(is_valid_);
   DCHECK(that.is_valid_);
   return CompareTo(that) == 0;
 }
 
 int Version::CompareTo(const Version& other) const {
   DCHECK(is_valid_);
   DCHECK(other.is_valid_);
   size_t count = std::min(components_.size(), other.components_.size());
@@ skipping 45 matching lines @@
       return false;
     // This throws out things like +3, or 032.
     if (base::IntToString(num) != *i)
       return false;
     uint16 component = static_cast<uint16>(num);
     components_.push_back(component);
   }
   is_valid_ = true;
   return true;
 }