Update Linux to use scoped_refptr<T>::get() rather than implicit "operator T*"

chrome/browser/background/background_application_list_model.cc

 // Copyright (c) 2012 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/background/background_application_list_model.h"
 
 #include <algorithm>
 #include <set>
 
 #include "base/stl_util.h"
@@ skipping 25 matching lines @@
 using extensions::APIPermission;
 using extensions::Extension;
 using extensions::ExtensionList;
 using extensions::PermissionSet;
 using extensions::UnloadedExtensionInfo;
 using extensions::UpdatedExtensionPermissionsInfo;
 
 class ExtensionNameComparator {
  public:
   explicit ExtensionNameComparator(icu::Collator* collator);
-  bool operator()(const Extension* x, const Extension* y);
+  bool operator()(const scoped_refptr<const Extension>& x,
+                  const scoped_refptr<const Extension>& y);
 
  private:
   icu::Collator* collator_;
 };
 
 ExtensionNameComparator::ExtensionNameComparator(icu::Collator* collator)
   : collator_(collator) {
 }
 
-bool ExtensionNameComparator::operator()(const Extension* x,
-                                         const Extension* y) {
+bool ExtensionNameComparator::operator()(
+    const scoped_refptr<const Extension>& x,
+    const scoped_refptr<const Extension>& y) {
   return l10n_util::StringComparator<string16>(collator_)(
-    UTF8ToUTF16(x->name()),
-    UTF8ToUTF16(y->name()));
+      UTF8ToUTF16(x->name()), UTF8ToUTF16(y->name()));
 }
 
 // Background application representation, private to the
 // BackgroundApplicationListModel class.
 class BackgroundApplicationListModel::Application
     : public base::SupportsWeakPtr<Application> {
  public:
   Application(BackgroundApplicationListModel* model,
               const Extension* an_extension);
 
@@ skipping 337 matching lines @@
          (*old_cursor)->name() == (*new_cursor)->name() &&
          (*old_cursor)->id() == (*new_cursor)->id()) {
     ++old_cursor;
     ++new_cursor;
   }
   if (old_cursor != extensions_.end() || new_cursor != extensions.end()) {
     extensions_ = extensions;
     FOR_EACH_OBSERVER(Observer, observers_, OnApplicationListChanged(profile_));
   }
 }