Add multiplexing of message pipes in the new EDK.

components/web_view/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/web_view/frame.h"
 
 #include <algorithm>
 
 #include "base/auto_reset.h"
 #include "base/bind.h"
@@ skipping 369 matching lines @@
   TRACE_EVENT1("web_view", "Frame::OnCanNavigateFrame",
                "url", url.possibly_invalid_spec());
 
   DVLOG(2) << "Frame::OnCanNavigateFrame id=" << id_
            << " equal=" << (AreAppIdsEqual(app_id, app_id_) ? "true" : "false");
   if (AreAppIdsEqual(app_id, app_id_)) {
     // The app currently rendering the frame will continue rendering it. In this
     // case we do not use the WindowTreeClient (because the app has a Window
     // already
     // and ends up reusing it).
-    DCHECK(!window_tree_client.get());
+    DCHECK(!window_tree_client);
     ChangeClient(frame_client, user_data.Pass(), window_tree_client.Pass(),
                  app_id, navigation_start_time);
   } else {
     waiting_for_on_will_navigate_ack_ = true;
-    DCHECK(window_tree_client.get());
+    DCHECK(window_tree_client);
     // TODO(sky): url isn't correct here, it should be a security origin.
     frame_client_->OnWillNavigate(
         url.spec(),
         base::Bind(&Frame::OnWillNavigateAck, base::Unretained(this),
                    frame_client, base::Passed(&user_data),
                    base::Passed(&window_tree_client), app_id,
                    navigation_start_time));
   }
 }
 
@@ skipping 191 matching lines @@
                                               final_update);
 }
 
 void Frame::OnFindInPageSelectionUpdated(int32_t request_id,
                                          int32_t active_match_ordinal) {
   tree_->delegate_->OnFindInPageSelectionUpdated(request_id, this,
                                                  active_match_ordinal);
 }
 
 }  // namespace web_view