Added NavigationContext::IsPost.

ios/web/test/web_int_test.mm

 // Copyright 2015 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/test/web_int_test.h"
 
 #import "base/ios/block_types.h"
 #include "base/memory/ptr_util.h"
 #import "base/test/ios/wait_util.h"
 #import "ios/web/public/test/http_server.h"
@@ skipping 84 matching lines @@
   DCHECK(block);
   observer_ = base::MakeUnique<IntTestWebStateObserver>(web_state());
   observer_->ExpectPageLoad(url);
   block();
   base::test::ios::WaitUntilCondition(^bool {
     return observer_->IsExpectedPageLoaded();
   });
 }
 
 void WebIntTest::LoadUrl(const GURL& url) {
-  ExecuteBlockAndWaitForLoad(url, ^{
-    web::NavigationManager::WebLoadParams params(url);
-    params.transition_type = ui::PageTransition::PAGE_TRANSITION_TYPED;
-    navigation_manager()->LoadURLWithParams(params);
+  web::NavigationManager::WebLoadParams params(url);
+  params.transition_type = ui::PageTransition::PAGE_TRANSITION_TYPED;
+  LoadWithParams(params);
+}
+
+void WebIntTest::LoadWithParams(
+    const NavigationManager::WebLoadParams& params) {
+  NavigationManager::WebLoadParams block_params(params);
+  ExecuteBlockAndWaitForLoad(params.url, ^{
+    navigation_manager()->LoadURLWithParams(block_params);
   });
 }
 
 void WebIntTest::RemoveWKWebViewCreatedData(WKWebsiteDataStore* data_store,
                                             NSSet* websiteDataTypes) {
   __block bool data_removed = false;
 
   ProceduralBlock remove_data = ^{
     [data_store removeDataOfTypes:websiteDataTypes
                     modifiedSince:[NSDate distantPast]
@@ skipping 27 matching lines @@
 NSInteger WebIntTest::GetIndexOfNavigationItem(
     const web::NavigationItem* item) {
   for (NSInteger i = 0; i < navigation_manager()->GetItemCount(); ++i) {
     if (navigation_manager()->GetItemAtIndex(i) == item)
       return i;
   }
   return NSNotFound;
 }
 
 }  // namespace web