Introduced StoreKitTabHelper class

ios/chrome/browser/native_app_launcher/native_app_navigation_controller_unittest.mm

 // Copyright 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 <memory>
 
 #include "base/bind.h"
 #include "base/mac/scoped_nsobject.h"
 #include "base/memory/ptr_util.h"
 #include "base/metrics/user_metrics.h"
@@ skipping 29 matching lines @@
  private:
   base::scoped_nsprotocol<id<NativeAppWhitelistManager>> manager_;
 };
 
 class NativeAppNavigationControllerTest : public ChromeWebTest {
  protected:
   void SetUp() override {
     ChromeWebTest::SetUp();
     controller_.reset([[NativeAppNavigationController alloc]
             initWithWebState:web_state()
-        requestContextGetter:GetBrowserState()->GetRequestContext()
-                         tab:nil]);
+        requestContextGetter:GetBrowserState()->GetRequestContext()]);
 
     action_callback_ =
         base::Bind(&NativeAppNavigationControllerTest::OnUserAction,
                    base::Unretained(this));
     base::AddActionCallback(action_callback_);
 
     handler_called_counter_ = 0;
   }
 
   void TearDown() override {
@@ skipping 98 matching lines @@
   DCHECK([[controller_ appsPossiblyBeingInstalled] count] == 2);
   [fakeManager setAppScheme:kMapsAppName];
   [controller_ removeAppFromNotification:notificationMaps];
   DCHECK([[controller_ appsPossiblyBeingInstalled] count] == 1);
   [fakeManager setAppScheme:kYoutubeAppName];
   [controller_ removeAppFromNotification:notificationYouTube];
   DCHECK([[controller_ appsPossiblyBeingInstalled] count] == 0);
 }
 
 }  // namespace