Revert 113047 - Make ExtensionService use ExtensionSet.

chrome/browser/ui/browser_browsertest.cc

 // 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.
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/compiler_specific.h"
 #include "base/file_path.h"
 #if defined(OS_MACOSX)
@@ skipping 146 matching lines @@
 
     return page_title;
 #else
     // Do we need to use the above code on POSIX as well?
     return page_title;
 #endif
   }
 
   // Returns the app extension aptly named "App Test".
   const Extension* GetExtension() {
-    const ExtensionSet* extensions =
+    const ExtensionList* extensions =
         browser()->profile()->GetExtensionService()->extensions();
-    for (ExtensionSet::const_iterator it = extensions->begin();
-         it != extensions->end(); ++it) {
-      if ((*it)->name() == "App Test")
-        return *it;
+    for (size_t i = 0; i < extensions->size(); ++i) {
+      if ((*extensions)[i]->name() == "App Test")
+        return (*extensions)[i];
     }
     NOTREACHED();
     return NULL;
   }
 };
 
 // Launch the app on a page with no title, check that the app title was set
 // correctly.
 IN_PROC_BROWSER_TEST_F(BrowserTest, NoTitle) {
   ui_test_utils::NavigateToURL(browser(),
@@ skipping 1210 matching lines @@
 
   // The normal browser should now have four.
   EXPECT_EQ(4, browser()->tab_count());
 
   // Close the additional browsers.
   popup_browser->CloseAllTabs();
   app_browser->CloseAllTabs();
   app_popup_browser->CloseAllTabs();
 }
 #endif