Implement Reload for ORIGINAL_REQUEST_URL in NavigationManagerImpl.

ios/web/navigation/crw_session_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/navigation/crw_session_controller.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <utility>
@@ skipping 351 matching lines @@
   NSInteger forwardItemStartIndex = _lastCommittedItemIndex + 1;
   DCHECK(forwardItemStartIndex >= 0);
 
   size_t itemCount = self.items.size();
   if (forwardItemStartIndex >= static_cast<NSInteger>(itemCount))
     return;
 
   if (_previousItemIndex >= forwardItemStartIndex)
     _previousItemIndex = -1;
 
-  // Remove the NavigationItems and notify the NavigationManater
+  // Remove the NavigationItems and notify the NavigationManager.
   _items.erase(_items.begin() + forwardItemStartIndex, _items.end());
   if (_navigationManager) {
     _navigationManager->OnNavigationItemsPruned(itemCount -
                                                 forwardItemStartIndex);
   }
 }
 
 - (void)commitPendingItem {
   if (self.pendingItem) {
     // Once an item is committed it's not renderer-initiated any more. (Matches
@@ skipping 154 matching lines @@
   DCHECK(index != _lastCommittedItemIndex);
   DCHECK(index >= 0);
 
   [self discardNonCommittedItems];
 
   _items.erase(_items.begin() + index);
   if (_lastCommittedItemIndex > index)
     _lastCommittedItemIndex--;
   if (_previousItemIndex >= index)
     _previousItemIndex--;
+

[liaoyuke, 2017/03/27 16:22:43]

I see the following code in clearForwardItems:

if (_navigationManager) {
_navigationManager->OnNavigationItemsPruned(itemCount - forwardItemStartIndex);
}

So, I guess we wanted to do the same thing here.

[Eugene But (OOO till 7-30), 2017/03/27 17:15:47]

Sounds reasonable, but it would be better to make the change in a separate CL.

[liaoyuke, 2017/03/28 00:16:40]

Acknowledged.

+  if (_navigationManager) {
+    _navigationManager->OnNavigationItemsPruned(1U);
+  }
 }
 
 - (BOOL)isSameDocumentNavigationBetweenItem:(web::NavigationItem*)firstItem
                                     andItem:(web::NavigationItem*)secondItem {
   if (!firstItem || !secondItem || firstItem == secondItem)
     return NO;
   NSUInteger firstIndex = [self indexOfItem:firstItem];
   NSUInteger secondIndex = [self indexOfItem:secondItem];
   if (firstIndex == NSNotFound || secondIndex == NSNotFound)
     return NO;
@@ skipping 64 matching lines @@
   return item;
 }
 
 - (BOOL)isRedirectTransitionForItemAtIndex:(size_t)index {
   DCHECK_LT(index, self.items.size());
   ui::PageTransition transition = self.items[index]->GetTransitionType();
   return (transition & ui::PAGE_TRANSITION_IS_REDIRECT_MASK) ? YES : NO;
 }
 
 @end