Consolidated all CWVWebView test helpers inside web_view_test_util file.

ios/web_view/test/chrome_web_view_test.h

 // Copyright 2017 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.
 
 #ifndef IOS_WEB_VIEW_TEST_CHROME_WEB_VIEW_TEST_H_
 #define IOS_WEB_VIEW_TEST_CHROME_WEB_VIEW_TEST_H_
 
 #include <memory>
 #include <string>
 
@@ skipping 24 matching lines @@
   GURL GetUrlForPageWithTitle(const std::string& title);
 
   // Returns URL to an html page with |html| within page's body tags.
   GURL GetUrlForPageWithHtmlBody(const std::string& html);
 
   // Returns URL to an html page with title set to |title| and |body| within
   // the page's body tags.
   GURL GetUrlForPageWithTitleAndBody(const std::string& title,
                                      const std::string& body);
 
-  // Loads |URL| in |web_view| and waits until the load completes. Asserts if
-  // loading does not complete.
-  void LoadUrl(CWVWebView* web_view, NSURL* url);
-
-  // Waits until |web_view| stops loading. Asserts if loading does not complete.
-  void WaitForPageLoadCompletion(CWVWebView* web_view);
-
   // PlatformTest methods.
   void SetUp() override;
 
   // CWVWebView created with default configuration and frame equal to screen
   // bounds.
   base::scoped_nsobject<CWVWebView> web_view_;
 
   // Embedded server for handling requests sent to the URLs returned by the
   // GetURL* methods.
   std::unique_ptr<net::test_server::EmbeddedTestServer> test_server_;
 };
 
 }  // namespace ios_web_view
 
 #endif  // IOS_WEB_VIEW_TEST_CHROME_WEB_VIEW_TEST_H_