Removed Form Resubmission callback from CRWWebDelegate.

ios/web/web_state/web_state_delegate_bridge_unittest.mm

 // Copyright 2016 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/public/web_state/web_state_delegate_bridge.h"
 
 #import <Foundation/Foundation.h>
 
 #include <memory>
 
@@ skipping 79 matching lines @@
   EXPECT_EQ(context_menu_params.menu_title, result_params->menu_title);
   EXPECT_EQ(context_menu_params.link_url, result_params->link_url);
   EXPECT_EQ(context_menu_params.src_url, result_params->src_url);
   EXPECT_EQ(context_menu_params.referrer_policy,
             result_params->referrer_policy);
   EXPECT_EQ(context_menu_params.view, result_params->view);
   EXPECT_EQ(context_menu_params.location.x, result_params->location.x);
   EXPECT_EQ(context_menu_params.location.y, result_params->location.y);
 }
 
+// Tests |ShowRepostFormWarningDialog| forwarding.

[rohitrao (ping after 24h), 2017/01/24 14:15:13]

Is it worth also testing that the default implementation calls callback(true),
if the delegate does not implement this method?

[Eugene But (OOO till 7-30), 2017/01/24 21:33:11]

Yep. Added the test.

+TEST_F(WebStateDelegateBridgeTest, ShowRepostFormWarningDialog) {
+  EXPECT_FALSE([delegate_ repostFormWarningRequested]);
+  EXPECT_FALSE([delegate_ webState]);
+  base::Callback<void(bool)> callback;
+  bridge_->ShowRepostFormWarningDialog(&test_web_state_, callback);
+  EXPECT_TRUE([delegate_ repostFormWarningRequested]);
+  EXPECT_EQ(&test_web_state_, [delegate_ webState]);
+}
+
 // Tests |GetJavaScriptDialogPresenter| forwarding.
 TEST_F(WebStateDelegateBridgeTest, GetJavaScriptDialogPresenter) {
   EXPECT_FALSE([delegate_ javaScriptDialogPresenterRequested]);
   bridge_->GetJavaScriptDialogPresenter(nullptr);
   EXPECT_TRUE([delegate_ javaScriptDialogPresenterRequested]);
 }
 
 // Tests |OnAuthRequired| forwarding.
 TEST_F(WebStateDelegateBridgeTest, OnAuthRequired) {
   EXPECT_FALSE([delegate_ authenticationRequested]);
   EXPECT_FALSE([delegate_ webState]);
   base::scoped_nsobject<NSURLProtectionSpace> protection_space(
       [[NSURLProtectionSpace alloc] init]);
   base::scoped_nsobject<NSURLCredential> credential(
       [[NSURLCredential alloc] init]);
   WebStateDelegate::AuthCallback callback;
   bridge_->OnAuthRequired(&test_web_state_, protection_space.get(),
                           credential.get(), callback);
   EXPECT_TRUE([delegate_ authenticationRequested]);
   EXPECT_EQ(&test_web_state_, [delegate_ webState]);
 }
 
 }  // namespace web