Remove linked_ptr usage in //base.

components/guest_view/browser/guest_view_base.cc

 // Copyright 2014 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/guest_view/browser/guest_view_base.h"
 
 #include <utility>
 
 #include "base/lazy_instance.h"
 #include "base/macros.h"
@@ skipping 740 matching lines @@
   }
 }
 
 void GuestViewBase::DispatchEventToGuestProxy(GuestViewEvent* event) {
   event->Dispatch(this, guest_instance_id_);
 }
 
 void GuestViewBase::DispatchEventToView(GuestViewEvent* event) {
   if (!attached() &&
       (!CanRunInDetachedState() || !can_owner_receive_events())) {
-    pending_events_.push_back(linked_ptr<GuestViewEvent>(event));
+    pending_events_.push_back(make_scoped_ptr(event));

[dcheng, 2016/01/27 22:18:27]

Another alternative is:
pending_events_.emplace_back(event);

Though it's technically not on the C++11 allowed library features list.

     return;
   }
 
   event->Dispatch(this, view_instance_id_);
 }
 
 void GuestViewBase::SendQueuedEvents() {
   if (!attached())
     return;
   while (!pending_events_.empty()) {
-    linked_ptr<GuestViewEvent> event_ptr = pending_events_.front();
+    scoped_ptr<GuestViewEvent> event_ptr = std::move(pending_events_.front());
     pending_events_.pop_front();
-    event_ptr.release()->Dispatch(this, view_instance_id_);
+    event_ptr->Dispatch(this, view_instance_id_);
   }
 }
 
 void GuestViewBase::CompleteInit(
     scoped_ptr<base::DictionaryValue> create_params,
     const WebContentsCreatedCallback& callback,
     WebContents* guest_web_contents) {
   if (!guest_web_contents) {
     // The derived class did not create a WebContents so this class serves no
     // purpose. Let's self-destruct.
@@ skipping 102 matching lines @@
 
 void GuestViewBase::UpdateGuestSize(const gfx::Size& new_size,
                                     bool due_to_auto_resize) {
   if (due_to_auto_resize)
     GuestSizeChangedDueToAutoSize(guest_size_, new_size);
   DispatchOnResizeEvent(guest_size_, new_size);
   guest_size_ = new_size;
 }
 
 }  // namespace guest_view