Reuse context menu in StaticHTMLViewController

ios/web/public/web_state/ui/crw_context_menu_delegate.h

Index: ios/web/public/web_state/ui/crw_context_menu_delegate.h
diff --git a/ios/web/public/web_state/ui/crw_context_menu_delegate.h b/ios/web/public/web_state/ui/crw_context_menu_delegate.h
new file mode 100644
index 0000000000000000000000000000000000000000..89ee192e206cbe8e6cba253e440fd5cb2e550243
--- /dev/null
+++ b/ios/web/public/web_state/ui/crw_context_menu_delegate.h
@@ -0,0 +1,17 @@
+// Copyright 2017 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.
+
+#ifndef IOS_WEB_PUBLIC_WEB_STATE_UI_CRW_CONTEXT_MENU_DELEGATE_H_
+#define IOS_WEB_PUBLIC_WEB_STATE_UI_CRW_CONTEXT_MENU_DELEGATE_H_
+
+#import <WebKit/WebKit.h>
+
+#import "ios/web/public/web_state/context_menu_params.h"
+
+@protocol CRWContextMenuDelegate
+- (BOOL)webView:(WKWebView*)webView

[Eugene But (OOO till 7-30), 2017/01/13 16:19:41]

Could you please add comments. Things which worth explaining are:
- this is called when user performs a long press gesture on a web view
- this method is not called if gesture is performed on iframe (crbug.com/228179)
- if result is YES then system context menu will be suppressed
- if result is NO then system context menu will show up
- clients don't have to show any UI, so this can be used to suppress system
context menu

Maybe other things I missed here?

[Olivier, 2017/01/13 18:08:58]

Added a timing comment when returning YES.

+    handleContextMenu:(const web::ContextMenuParams&)params;
+@end
+
+#endif  // IOS_WEB_PUBLIC_WEB_STATE_UI_CRW_CONTEXT_MENU_DELEGATE_H_