Make all of our unit tests be PlatformTests to get an autorelease pool....

chrome/browser/cocoa/search_engine_list_model_unittest.mm

 // Copyright (c) 2009 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/scoped_nsobject.h"
 #include "chrome/browser/cocoa/browser_test_helper.h"
 #import "chrome/browser/cocoa/search_engine_list_model.h"
 #include "chrome/browser/profile.h"
 #include "chrome/browser/search_engines/template_url.h"
 #include "chrome/browser/search_engines/template_url_model.h"
 #include "testing/gtest/include/gtest/gtest.h"
+#include "testing/platform_test.h"
 
 // A helper for NSNotifications. Makes a note that it's been called back.
 @interface SearchEngineListHelper : NSObject {
  @public
   BOOL sawNotification_;
 }
 @end
 
 @implementation SearchEngineListHelper
 - (void)entryChanged:(NSNotification*)notify {
   sawNotification_ = YES;
 }
 @end
 
-class SearchEngineListModelTest : public testing::Test {
+class SearchEngineListModelTest : public PlatformTest {
  public:
   SearchEngineListModelTest() {
     // Build a fake set of template urls.
     template_model_.reset(new TemplateURLModel(helper_.profile()));
     TemplateURL* t_url = new TemplateURL();
     t_url->SetURL(L"http://www.google.com/foo/bar", 0, 0);
     t_url->set_keyword(L"keyword");
     t_url->set_short_name(L"google");
     t_url->set_show_in_default_list(true);
     template_model_->Add(t_url);
@@ skipping 49 matching lines @@
   // Add one more item to force a notification.
   TemplateURL* t_url = new TemplateURL();
   t_url->SetURL(L"http://www.google3.com/foo/bar", 0, 0);
   t_url->set_keyword(L"keyword3");
   t_url->set_short_name(L"google3");
   t_url->set_show_in_default_list(true);
   template_model_->Add(t_url);
 
   EXPECT_TRUE(notification_helper_.get()->sawNotification_);
 }