Add precompiled header support for the libGLESv2 project.

TRAC #22518

Signed-off-by: Geoff Lang
Signed-off-by: Shannon Woods
Author: Jamie Madill

git-svn-id: https://angleproject.googlecode.com/svn/branches/dx11proto@1938 736b8ea6-26fd-11df-bfd4-992fa37f6226
diff --git a/src/libGLESv2/Context.cpp b/src/libGLESv2/Context.cpp
index ab4948e..22666af 100644
--- a/src/libGLESv2/Context.cpp
+++ b/src/libGLESv2/Context.cpp
@@ -1,3 +1,4 @@
+#include "precompiled.h"
 //
 // Copyright (c) 2002-2013 The ANGLE Project Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
@@ -9,8 +10,6 @@
 
 #include "libGLESv2/Context.h"
 
-#include <sstream>
-
 #include "libGLESv2/main.h"
 #include "libGLESv2/utilities.h"
 #include "libGLESv2/Buffer.h"