pepper: Use the RenderThread's shared context as the parent context.

content/renderer/pepper/pepper_parent_context_provider.cc

Index: content/renderer/pepper/pepper_parent_context_provider.cc
diff --git a/content/renderer/pepper/pepper_parent_context_provider.cc b/content/renderer/pepper/pepper_parent_context_provider.cc
deleted file mode 100644
index 9cb7a1facb2b60b8a172603bf7252b5eea749b13..0000000000000000000000000000000000000000
--- a/content/renderer/pepper/pepper_parent_context_provider.cc
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2012 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 "content/renderer/pepper/pepper_parent_context_provider.h"
-
-namespace content {
-
-PepperParentContextProvider::PepperParentContextProvider() {
-}
-
-PepperParentContextProvider::~PepperParentContextProvider() {
-}
-
-}  // namespace content