[src/media] Declaring the weak_ptr_factory in proper order in cast,mojo and filters

media/filters/renderer_impl.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 "media/filters/renderer_impl.h"
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/callback_helpers.h"
 #include "base/compiler_specific.h"
@@ skipping 18 matching lines @@
       audio_renderer_(audio_renderer.Pass()),
       video_renderer_(video_renderer.Pass()),
       time_source_(NULL),
       time_ticking_(false),
       audio_buffering_state_(BUFFERING_HAVE_NOTHING),
       video_buffering_state_(BUFFERING_HAVE_NOTHING),
       audio_ended_(false),
       video_ended_(false),
       underflow_disabled_for_testing_(false),
       clockless_video_playback_enabled_for_testing_(false),
-      weak_factory_(this),
-      weak_this_(weak_factory_.GetWeakPtr()) {
+      weak_factory_(this) {
   DVLOG(1) << __FUNCTION__;
+  weak_this_ = weak_factory_.GetWeakPtr();
 }
 
 RendererImpl::~RendererImpl() {
   DVLOG(1) << __FUNCTION__;
   DCHECK(task_runner_->BelongsToCurrentThread());
 
   // Tear down in opposite order of construction as |video_renderer_| can still
   // need |time_source_| (which can be |audio_renderer_|) to be alive.
   video_renderer_.reset();
   audio_renderer_.reset();
@@ skipping 444 matching lines @@
   DCHECK(task_runner_->BelongsToCurrentThread());
 
   if (!init_cb_.is_null())
     base::ResetAndReturn(&init_cb_).Run();
 
   if (!flush_cb_.is_null())
     base::ResetAndReturn(&flush_cb_).Run();
 }
 
 }  // namespace media