webkit: Remove use of ALLOW_THIS_IN_INITIALIZER_LIST.

webkit/tools/test_shell/webwidget_host_win.cc

 // Copyright (c) 2011 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 "webkit/tools/test_shell/webwidget_host.h"
 
 #include "base/logging.h"
 #include "skia/ext/platform_canvas.h"
 #include "third_party/WebKit/Source/Platform/chromium/public/WebSize.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebInputEvent.h"
@@ skipping 182 matching lines @@
 void WebWidgetHost::DiscardBackingStore() {
   canvas_.reset();
 }
 
 WebWidgetHost::WebWidgetHost()
     : view_(NULL),
       webwidget_(NULL),
       track_mouse_leave_(false),
       scroll_dx_(0),
       scroll_dy_(0),
-      ALLOW_THIS_IN_INITIALIZER_LIST(weak_factory_(this)) {
+      weak_factory_(this) {
   set_painting(false);
 }
 
 WebWidgetHost::~WebWidgetHost() {
   ui::SetWindowUserData(view_, 0);
 
   TrackMouseLeave(false);
 
   webwidget_->close();
 }
@@ skipping 158 matching lines @@
 void WebWidgetHost::PaintRect(const gfx::Rect& rect) {
 #ifndef NDEBUG
   DCHECK(!painting_);
 #endif
   DCHECK(canvas_.get());
 
   set_painting(true);
   webwidget_->paint(canvas_.get(), rect);
   set_painting(false);
 }