Allow fullscreen flash to use all OpenGL extensions.

This matches the behavior of when it's not fullscreen.

BUG=
TEST=


Review URL: https://chromiumcodereview.appspot.com/10763021

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@145834 0039d316-1c4b-4281-b951-d872f2087c98

content/renderer/render_widget_fullscreen_pepper.cc

@@ -437,7 +437,7 @@ void RenderWidgetFullscreenPepper::CreateContext() {
   context_ = WebGraphicsContext3DCommandBufferImpl::CreateViewContext(
       RenderThreadImpl::current(),
       surface_id(),
-      "GL_OES_packed_depth_stencil GL_OES_depth24",
+      NULL,
       attributes,
       true /* bind generates resources */,
       active_url_,