Added NavigationContext::IsPost.

ios/web/web_state/ui/crw_web_controller.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.
 
 #import "ios/web/web_state/ui/crw_web_controller.h"
 
 #import <WebKit/WebKit.h>
 
 #import <objc/runtime.h>
 #include <stddef.h>
@@ skipping 1378 matching lines @@
   _webStateImpl->OnTitleChanged();
 }
 
 - (BOOL)isCurrentNavigationItemPOST {
   // |_pendingNavigationInfo| will be nil if the decidePolicy* delegate methods
   // were not called.
   NSString* HTTPMethod =
       _pendingNavigationInfo
           ? [_pendingNavigationInfo HTTPMethod]
           : [self currentBackForwardListItemHolder]->http_method();
-  return [HTTPMethod isEqual:@"POST"];
+  return [HTTPMethod isEqual:@"POST"] || self.currentNavItem->HasPostData();
 }
 
 - (BOOL)isCurrentNavigationBackForward {
   if (!self.currentNavItem)
     return NO;
   WKNavigationType currentNavigationType =
       [self currentBackForwardListItemHolder]->navigation_type();
   return currentNavigationType == WKNavigationTypeBackForward;
 }
 
@@ skipping 123 matching lines @@
       web::NavigationContextImpl::CreateNavigationContext(
           _webStateImpl, requestURL, transition);
 
   web::NavigationItem* item = self.navigationManagerImpl->GetPendingItem();
   // TODO(crbug.com/676129): AddPendingItem does not always create a pending
   // item. Remove this workaround once the bug is fixed.
   if (!item) {
     item = self.navigationManagerImpl->GetLastCommittedItem();
   }
   context->SetNavigationItemUniqueID(item->GetUniqueID());
+  context->SetIsPost([self isCurrentNavigationItemPOST]);
   _webStateImpl->SetIsLoading(true);
   _webStateImpl->OnNavigationStarted(context.get());
   return context;
 }
 
 - (void)updateHTML5HistoryState {
   web::NavigationItemImpl* currentItem = self.currentNavItem;
   if (!currentItem)
     return;
 
@@ skipping 489 matching lines @@
       NavigationManager::WebLoadParams reloadParams(transientItem->GetURL());
       reloadParams.transition_type = ui::PAGE_TRANSITION_RELOAD;
       reloadParams.extra_headers.reset(
           [transientItem->GetHttpRequestHeaders() copy]);
       [self loadWithParams:reloadParams];
     } else {
       // As with back and forward navigation, load the URL manually instead of
       // using the web view's reload. This ensures state processing and delegate
       // calls are consistent.
       // TODO(eugenebut): revisit this for WKWebView.
+      self.navigationManagerImpl->GetLastCommittedItem()->SetTransitionType(
+          ui::PAGE_TRANSITION_RELOAD);
       [self loadCurrentURL];
     }
   }
 }
 
 - (void)reload {
   [_delegate webWillReload];
   [self reloadInternal];
 }
 
@@ skipping 3172 matching lines @@
 - (NSUInteger)observerCount {
   DCHECK_EQ(_observerBridges.size(), [_observers count]);
   return [_observers count];
 }
 
 - (NSString*)referrerFromNavigationAction:(WKNavigationAction*)action {
   return [action.request valueForHTTPHeaderField:kReferrerHeaderName];
 }
 
 @end