Fixed isCurrentNavigationItemPOST for user initiated POSTs.

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 3824 matching lines @@
 - (NSUInteger)observerCount {
   DCHECK_EQ(_observerBridges.size(), [_observers count]);
   return [_observers count];
 }
 
 - (NSString*)referrerFromNavigationAction:(WKNavigationAction*)action {
   return [action.request valueForHTTPHeaderField:kReferrerHeaderName];
 }
 
 @end