[ios] Remove IDC_BACK and IDC_FORWARD

ios/chrome/browser/ui/browser_view_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/chrome/browser/ui/browser_view_controller.h"
 
 #import <AssetsLibrary/AssetsLibrary.h>
 #import <MobileCoreServices/MobileCoreServices.h>
 #import <PassKit/PassKit.h>
 #import <Photos/Photos.h>
@@ skipping 1773 matching lines @@
   }
 
   // Create the toolbar model and controller.
   _toolbarModelDelegate.reset(
       new ToolbarModelDelegateIOS([_model webStateList]));
   _toolbarModelIOS.reset([_dependencyFactory
       newToolbarModelIOSWithDelegate:_toolbarModelDelegate.get()]);
   _toolbarController = [_dependencyFactory
       newWebToolbarControllerWithDelegate:self
                                 urlLoader:self
-                          preloadProvider:_preloadController];
+                          preloadProvider:_preloadController
+                               dispatcher:self.browserCommandDispatcher];
   [_dispatcher startDispatchingToTarget:_toolbarController
                             forProtocol:@protocol(OmniboxFocuser)];
   [_toolbarController setTabCount:[_model count]];
   if (_voiceSearchController)
     _voiceSearchController->SetDelegate(_toolbarController);
 
   // If needed, create the tabstrip.
   if (IsIPadIdiom()) {
     _tabStripController =
         [_dependencyFactory newTabStripControllerWithTabModel:_model];
@@ skipping 2200 matching lines @@
   CGRect cardFrame = {frame.origin, cardSize};
 
   CardView* card =
       [[CardView alloc] initWithFrame:cardFrame isIncognito:_isOffTheRecord];
   card.closeButtonSide = IsPortrait() ? CardCloseButtonSide::TRAILING
                                       : CardCloseButtonSide::LEADING;
   [_contentArea addSubview:card];
   return card;
 }
 
+#pragma mark - BrowserCommands
+
+- (void)goBack {
+  [[_model currentTab] goBack];
+}
+
+- (void)goForward {
+  [[_model currentTab] goForward];
+}
+
 #pragma mark - Command Handling
 
 - (IBAction)chromeExecuteCommand:(id)sender {
   NSInteger command = [sender tag];
 
   if (!_model || !_browserState)
     return;
   Tab* currentTab = [_model currentTab];
 
   switch (command) {
-    case IDC_BACK:
-      [[_model currentTab] goBack];
-      break;
     case IDC_BOOKMARK_PAGE:
       [self initializeBookmarkInteractionController];
       [_bookmarkInteractionController
           presentBookmarkForTab:[_model currentTab]
             currentlyBookmarked:_toolbarModelIOS->IsCurrentTabBookmarkedByUser()
                          inView:[_toolbarController bookmarkButtonView]
                      originRect:[_toolbarController bookmarkButtonAnchorRect]];
       break;
     case IDC_FIND:
       [self initFindBarForTab];
@@ skipping 15 matching lines @@
             [_findBarController updateResultsCount:model];
           });
       break;
     }
     case IDC_FIND_CLOSE:
       [self closeFindInPage];
       break;
     case IDC_FIND_UPDATE:
       [self searchFindInPage];
       break;
-    case IDC_FORWARD:
-      [[_model currentTab] goForward];
-      break;
     case IDC_FULLSCREEN:
       NOTIMPLEMENTED();
       break;
     case IDC_HELP_PAGE_VIA_MENU:
       [self showHelpPage];
       break;
     case IDC_NEW_TAB:
       if (_isOffTheRecord) {
         // Not for this browser state, send it on its way.
         [super chromeExecuteCommand:sender];
@@ skipping 1151 matching lines @@
 
 - (UIView*)voiceSearchButton {
   return _voiceSearchButton;
 }
 
 - (id<LogoAnimationControllerOwner>)logoAnimationControllerOwner {
   return [self currentLogoAnimationControllerOwner];
 }
 
 @end