Remove WebDocument::createEvent.

components/html_viewer/html_frame.cc

 // Copyright 2015 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.
 
 #include "components/html_viewer/html_frame.h"
 
 #include <algorithm>
 #include <limits>
 
 #include "base/bind.h"
@@ skipping 730 matching lines @@
     return;
   }
 
   blink::WebLocalFrame* target_web_frame =
       target->web_frame_->toWebLocalFrame();
 
   blink::WebSerializedScriptValue serialized_script_value;
   serialized_script_value = blink::WebSerializedScriptValue::fromString(
       serialized_event->data.To<blink::WebString>());
 
-  blink::WebMessagePortChannelArray channels;
-
-  // Create an event with the message.  The next-to-last parameter to
-  // initMessageEvent is the last event ID, which is not used with postMessage.
-  blink::WebDOMEvent event =
-      target_web_frame->document().createEvent("MessageEvent");
-  blink::WebDOMMessageEvent msg_event = event.to<blink::WebDOMMessageEvent>();
-  msg_event.initMessageEvent(
-      "message",
-      // |canBubble| and |cancellable| are always false
-      false, false, serialized_script_value,
-      serialized_event->source_origin.To<blink::WebString>(),
-      source->web_frame_, target_web_frame->document(), "", channels);
-
   // We must pass in the target_origin to do the security check on this side,
   // since it may have changed since the original postMessage call was made.
   blink::WebSecurityOrigin target_origin;
   if (!serialized_event->target_origin.is_null()) {
     target_origin = blink::WebSecurityOrigin::createFromString(
         serialized_event->target_origin.To<blink::WebString>());
   }
+
+  // TODO(esprehn): Shouldn't this also fill in channels like RenderFrameImpl?
+  blink::WebMessagePortChannelArray channels;
+  blink::WebDOMMessageEvent msg_event(serialized_script_value,
+      serialized_event->source_origin.To<blink::WebString>(),
+      source->web_frame_, target_web_frame->document(), channels);
+
   target_web_frame->dispatchMessageEventWithOriginCheck(target_origin,
                                                         msg_event);
 }
 
 void HTMLFrame::OnWillNavigate(const mojo::String& origin,
                                const OnWillNavigateCallback& callback) {
   DVLOG(2) << "HTMLFrame::OnWillNavigate this=" << this << " id=" << id_
            << " local=" << IsLocal() << " will_swap="
            << (IsLocal() && this != frame_tree_manager_->local_root_);
   callback.Run();
@@ skipping 80 matching lines @@
 
 void HTMLFrame::reload(bool ignore_cache, bool is_client_redirect) {
   NOTIMPLEMENTED();
 }
 
 void HTMLFrame::forwardInputEvent(const blink::WebInputEvent* event) {
   NOTIMPLEMENTED();
 }
 
 }  // namespace mojo