Convert ios_web_view_shell to pure Objective-C.

ios/web_view/shell/translate_controller.mm

Index: ios/web_view/shell/translate_controller.mm
diff --git a/ios/web_view/shell/translate_controller.mm b/ios/web_view/shell/translate_controller.mm
deleted file mode 100644
index 98bc51bce606b0d846414ace6b139504f2d090ca..0000000000000000000000000000000000000000
--- a/ios/web_view/shell/translate_controller.mm
+++ /dev/null
@@ -1,75 +0,0 @@
-// Copyright 2014 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_view/shell/translate_controller.h"
-
-#import <UIKit/UIKit.h>
-
-#include "base/logging.h"
-#import "ios/web_view/public/criwv_translate_manager.h"
-
-#if !defined(__has_feature) || !__has_feature(objc_arc)
-#error "This file requires ARC support."
-#endif
-
-@interface TranslateController ()
-// Action Sheet to prompt user whether or not the page should be translated.
-@property (nonatomic, strong) UIAlertController* beforeTranslateActionSheet;
-// Manager which performs the translation of the content.
-@property (nonatomic, strong) id<CRIWVTranslateManager> translateManager;
-@end
-
-@implementation TranslateController
-
-@synthesize beforeTranslateActionSheet = _beforeTranslateActionSheet;
-@synthesize translateManager = _translateManager;
-
-- (void)dealloc {
-  [_beforeTranslateActionSheet dismissViewControllerAnimated:YES
-                                                  completion:nil];
-}
-
-#pragma mark CRIWVTranslateDelegate methods
-
-- (void)translateStepChanged:(CRIWVTransateStep)step
-                     manager:(id<CRIWVTranslateManager>)manager {
-  if (step == CRIWVTransateStepBeforeTranslate) {
-    DCHECK(!_translateManager);
-    DCHECK(!_beforeTranslateActionSheet);
-    self.translateManager = manager;
-    self.beforeTranslateActionSheet = [UIAlertController
-        alertControllerWithTitle:nil
-                         message:@"Translate?"
-                  preferredStyle:UIAlertControllerStyleActionSheet];
-    UIAlertAction* cancelAction =
-        [UIAlertAction actionWithTitle:@"Nope."
-                                 style:UIAlertActionStyleCancel
-                               handler:^(UIAlertAction* action) {
-                                 DCHECK(_beforeTranslateActionSheet);
-                                 self.beforeTranslateActionSheet = nil;
-                                 DCHECK(_translateManager);
-                                 self.translateManager = nil;
-                               }];
-    [_beforeTranslateActionSheet addAction:cancelAction];
-
-    UIAlertAction* translateAction =
-        [UIAlertAction actionWithTitle:@"Yes!"
-                                 style:UIAlertActionStyleDefault
-                               handler:^(UIAlertAction* action) {
-                                 DCHECK(_beforeTranslateActionSheet);
-                                 self.beforeTranslateActionSheet = nil;
-                                 DCHECK(_translateManager);
-                                 [_translateManager translate];
-                                 self.translateManager = nil;
-                               }];
-    [_beforeTranslateActionSheet addAction:translateAction];
-
-    [[UIApplication sharedApplication].keyWindow.rootViewController
-        presentViewController:_beforeTranslateActionSheet
-                     animated:YES
-                   completion:nil];
-  }
-}
-
-@end