[Extensions Toolbar] Refactor a few test classes

chrome/browser/ui/cocoa/extensions/test_toolbar_actions_bar_helper_cocoa.mm

-// Copyright 2014 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/ui/toolbar/test_toolbar_actions_bar_helper.h"
-
-#import "base/mac/scoped_nsobject.h"
-#import "chrome/browser/ui/cocoa/extensions/browser_actions_container_view.h"
-#import "chrome/browser/ui/cocoa/extensions/browser_actions_controller.h"
-#import "chrome/browser/ui/cocoa/cocoa_test_helper.h"
-
-namespace {
-
-// The Cocoa implementation of the TestToolbarActionsBarHelper, which creates
-// (and owns) a BrowserActionsController and BrowserActionsContainerView for
-// testing purposes.
-class TestToolbarActionsBarHelperCocoa : public TestToolbarActionsBarHelper {
- public:
-  TestToolbarActionsBarHelperCocoa(Browser* browser,
-                                   TestToolbarActionsBarHelperCocoa* mainBar);
-  ~TestToolbarActionsBarHelperCocoa() override;
-
- private:
-  // TestToolbarActionsBarHelper:
-  ToolbarActionsBar* GetToolbarActionsBar() override;
-
-  // The owned BrowserActionsContainerView and BrowserActionsController; the
-  // mac implementation of the ToolbarActionsBar delegate and view.
-  base::scoped_nsobject<BrowserActionsContainerView> containerView_;
-  base::scoped_nsobject<BrowserActionsController> controller_;
-
-  DISALLOW_COPY_AND_ASSIGN(TestToolbarActionsBarHelperCocoa);
-};
-
-TestToolbarActionsBarHelperCocoa::TestToolbarActionsBarHelperCocoa(
-    Browser* browser,
-    TestToolbarActionsBarHelperCocoa* mainBar) {
-  // Make sure that Cocoa has been bootstrapped.
-  CocoaTest::BootstrapCocoa();
-
-  containerView_.reset([[BrowserActionsContainerView alloc]
-      initWithFrame:NSMakeRect(0, 0, 0, 15)]);
-  BrowserActionsController* mainController =
-      mainBar ? mainBar->controller_.get() : nil;
-  controller_.reset([[BrowserActionsController alloc]
-      initWithBrowser:browser
-        containerView:containerView_.get()
-       mainController:mainController]);
-}
-
-TestToolbarActionsBarHelperCocoa::~TestToolbarActionsBarHelperCocoa() {}
-
-ToolbarActionsBar* TestToolbarActionsBarHelperCocoa::GetToolbarActionsBar() {
-  return [controller_ toolbarActionsBar];
-}
-
-}  // namespace
-
-scoped_ptr<TestToolbarActionsBarHelper> TestToolbarActionsBarHelper::Create(
-    Browser* browser,
-    TestToolbarActionsBarHelper* main_bar) {
-  return make_scoped_ptr(new TestToolbarActionsBarHelperCocoa(
-      browser,
-      static_cast<TestToolbarActionsBarHelperCocoa*>(main_bar)));
-}