[ios] Reload the page inside WebTestWithWebState::LoadHtml if necessary.

ios/web/public/test/web_test_with_web_state.mm

 // Copyright 2016 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.
 
 #import "ios/web/public/test/web_test_with_web_state.h"
 
 #include "base/strings/sys_string_conversions.h"
 #include "base/test/ios/wait_util.h"
 #import "ios/web/public/web_state/url_verification_constants.h"
 #include "ios/web/public/web_state/web_state_observer.h"
@@ skipping 53 matching lines @@
   CRWWebController* web_controller = GetWebController(web_state());
   ASSERT_EQ(PAGE_LOADED, web_controller.loadPhase);
   [web_controller loadHTML:html forURL:url];
   ASSERT_EQ(LOAD_REQUESTED, web_controller.loadPhase);
 
   // Wait until the page is loaded.
   base::test::ios::WaitUntilCondition(^{
     return web_controller.loadPhase == PAGE_LOADED;
   });
 
-  // Wait until scripts execution becomes possible.
-  base::test::ios::WaitUntilCondition(^bool {
-    return [ExecuteJavaScript(@"0;") isEqual:@0];
-  });
+  // Reload the page if script execution is not possible.
+  if (![ExecuteJavaScript(@"0;") isEqual:@0]) {
+    LoadHtml(html, url);
+  }
 }
 
 void WebTestWithWebState::LoadHtml(NSString* html) {
   GURL url("https://chromium.test/");
   LoadHtml(html, url);
 }
 
 void WebTestWithWebState::LoadHtml(const std::string& html) {
   LoadHtml(base::SysUTF8ToNSString(html));
 }
@@ skipping 60 matching lines @@
 
 void WebTestWithWebState::WillProcessTask(const base::PendingTask&) {
   // Nothing to do.
 }
 
 void WebTestWithWebState::DidProcessTask(const base::PendingTask&) {
   processed_a_task_ = true;
 }
 
 }  // namespace web