Removed Form Resubmission callback from CRWWebDelegate.

ios/web/web_state/web_state_delegate_bridge.mm

Index: ios/web/web_state/web_state_delegate_bridge.mm
diff --git a/ios/web/web_state/web_state_delegate_bridge.mm b/ios/web/web_state/web_state_delegate_bridge.mm
index 695410ae94365af1561fc7adb3db7463ac7e930c..ef541483006ee982b4c89c43935ec77f88e67b2b 100644
--- a/ios/web/web_state/web_state_delegate_bridge.mm
+++ b/ios/web/web_state/web_state_delegate_bridge.mm
@@ -37,6 +37,19 @@ bool WebStateDelegateBridge::HandleContextMenu(
   return NO;
 }
 
+void WebStateDelegateBridge::ShowRepostFormWarningDialog(
+    WebState* source,
+    const base::Callback<void(bool)>& callback) {
+  base::Callback<void(bool)> local_callback(callback);
+  SEL selector = @selector(webState:runRepostFormDialogWithCompletionHandler:);
+  if ([delegate_ respondsToSelector:selector]) {
+    [delegate_ webState:source
+        runRepostFormDialogWithCompletionHandler:^(BOOL should_continue) {
+          local_callback.Run(should_continue);
+        }];
+  }

[marq (ping after 24h), 2017/01/23 08:18:28]

Should there be a default behavior if |delegate_| doesn't implement the method?

[Eugene But (OOO till 7-30), 2017/01/23 19:48:33]

Good catch. Added default behavior and updated the comment.

+}
+
 JavaScriptDialogPresenter* WebStateDelegateBridge::GetJavaScriptDialogPresenter(
     WebState* source) {
   SEL selector = @selector(javaScriptDialogPresenterForWebState:);