content: Remove use of ALLOW_THIS_IN_INITIALIZER_LIST.

It's no longer providing value as the MSVC warning is disabled during compilation. Refer to bug for details.

BUG=234765
[email protected]

Review URL: https://codereview.chromium.org/14386012

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@197206 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/content/renderer/render_widget.cc b/content/renderer/render_widget.cc
index 3fd9e99..f8d31372 100644
--- a/content/renderer/render_widget.cc
+++ b/content/renderer/render_widget.cc
@@ -172,7 +172,7 @@
       device_scale_factor_(screen_info_.deviceScaleFactor),
       throttle_input_events_(true),
       is_threaded_compositing_enabled_(false),
-      ALLOW_THIS_IN_INITIALIZER_LIST(weak_ptr_factory_(this)) {
+      weak_ptr_factory_(this) {
   if (!swapped_out)
     RenderProcess::current()->AddRefProcess();
   DCHECK(RenderThread::Get());