Removed -[CRWWebDelegate webWillReload] callback.

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 594 matching lines @@
 // not be null.
 - (void)loadNativeViewWithSuccess:(BOOL)loadSuccess
                 navigationContext:(web::NavigationContextImpl*)context;
 // Loads the correct HTML page for |error| in a native controller, retrieved
 // from the native provider.
 - (void)loadErrorInNativeView:(NSError*)error
             navigationContext:(web::NavigationContextImpl*)context;
 // YES if the navigation to |url| should be treated as a reload.
 - (BOOL)shouldReload:(const GURL&)destinationURL
           transition:(ui::PageTransition)transition;
-// Internal implementation of reload. Reloads without notifying the delegate.
-// Most callers should use -reload instead.
-- (void)reloadInternal;
 // Aborts any load for both the web view and web controller.
 - (void)abortLoad;
 // Updates the internal state and informs the delegate that any outstanding load
 // operations are cancelled.
 - (void)loadCancelled;
 // If YES, the page should be closed if it successfully redirects to a native
 // application, for example if a new tab redirects to the App Store.
 - (BOOL)shouldClosePageOnNativeApplicationLoad;
 // Called following navigation completion to generate final navigation lifecycle
 // events. Navigation is considered complete when the document has finished
@@ skipping 1389 matching lines @@
 
 - (BOOL)shouldReload:(const GURL&)destinationURL
           transition:(ui::PageTransition)transition {
   // Do a reload if the user hits enter in the address bar or re-types a URL.
   web::NavigationItem* item = self.navigationManagerImpl->GetVisibleItem();
   return (transition & ui::PAGE_TRANSITION_FROM_ADDRESS_BAR) && item &&
          (destinationURL == item->GetURL() ||
           destinationURL == item->GetOriginalRequestURL());
 }
 
-// Reload either the web view or the native content depending on which is
-// displayed.
-- (void)reloadInternal {
+- (void)reload {
   // Clear last user interaction.
   // TODO(crbug.com/546337): Move to after the load commits, in the subclass
   // implementation. This will be inaccurate if the reload fails or is
   // cancelled.
   _lastUserInteraction.reset();
   base::RecordAction(UserMetricsAction("Reload"));
   GURL url = self.currentNavItem->GetURL();
   if ([self shouldLoadURLInNativeView:url]) {
     std::unique_ptr<web::NavigationContextImpl> navigationContext = [self
         registerLoadRequestForURL:url
@@ skipping 15 matching lines @@
           [transientItem->GetHttpRequestHeaders() copy]);
       [self loadWithParams:reloadParams];
     } else {
       self.currentNavItem->SetTransitionType(
           ui::PageTransition::PAGE_TRANSITION_RELOAD);
       [self loadCurrentURL];
     }
   }
 }
 
-- (void)reload {
-  [_delegate webWillReload];
-  [self reloadInternal];
-}
-
 - (void)abortLoad {
   [_webView stopLoading];
   [_pendingNavigationInfo setCancelled:YES];
   _certVerificationErrors->Clear();
   [self loadCancelled];
 }
 
 - (void)loadCancelled {
   [_passKitDownloader cancelPendingDownload];
   if (_loadPhase != web::PAGE_LOADED) {
@@ skipping 3157 matching lines @@
 - (NSUInteger)observerCount {
   DCHECK_EQ(_observerBridges.size(), [_observers count]);
   return [_observers count];
 }
 
 - (NSString*)referrerFromNavigationAction:(WKNavigationAction*)action {
   return [action.request valueForHTTPHeaderField:kReferrerHeaderName];
 }
 
 @end