Revert 123696 - Add Pepper support for several GL extensions

ppapi/lib/gl/gles2/gl2ext_ppapi.c

Index: ppapi/lib/gl/gles2/gl2ext_ppapi.c
===================================================================
--- ppapi/lib/gl/gles2/gl2ext_ppapi.c	(revision 123696)
+++ ppapi/lib/gl/gles2/gl2ext_ppapi.c	(working copy)
@@ -1,4 +1,4 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// 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.
 
@@ -26,16 +26,6 @@
 // TODO(alokp): This will need to be thread-safe if we build gles2 as a
 // shared library.
 static const struct PPB_OpenGLES2* g_gles2_interface = NULL;
-static const struct PPB_OpenGLES2InstancedArrays_Dev*
-    g_gles2_instanced_arrays_interface = NULL;
-static const struct PPB_OpenGLES2FramebufferBlit_Dev*
-    g_gles2_framebuffer_blit_interface = NULL;
-static const struct PPB_OpenGLES2FramebufferMultisample_Dev*
-    g_gles2_framebuffer_multisample_interface = NULL;
-static const struct PPB_OpenGLES2ChromiumEnableFeature_Dev*
-    g_gles2_chromium_enable_feature_interface = NULL;
-static const struct PPB_OpenGLES2ChromiumMapSub_Dev*
-    g_gles2_chromium_map_sub_interface = NULL;
 
 // TODO(alokp): Make sure PP_TLS works on all supported platforms.
 static PP_TLS PP_Resource g_current_context = 0;
@@ -45,28 +35,6 @@
   if (!g_gles2_interface) {
     g_gles2_interface = get_browser_interface(PPB_OPENGLES2_INTERFACE);
   }
-  if (!g_gles2_instanced_arrays_interface) {
-    g_gles2_instanced_arrays_interface =
-        get_browser_interface(PPB_OPENGLES2_INSTANCEDARRAYS_DEV_INTERFACE);
-  }
-  if (!g_gles2_framebuffer_blit_interface) {
-    g_gles2_framebuffer_blit_interface =
-        get_browser_interface(PPB_OPENGLES2_FRAMEBUFFERBLIT_DEV_INTERFACE);
-  }
-  if (!g_gles2_framebuffer_multisample_interface) {
-    g_gles2_framebuffer_multisample_interface =
-        get_browser_interface(
-            PPB_OPENGLES2_FRAMEBUFFERMULTISAMPLE_DEV_INTERFACE);
-  }
-  if (!g_gles2_chromium_enable_feature_interface) {
-    g_gles2_chromium_enable_feature_interface =
-        get_browser_interface(
-            PPB_OPENGLES2_CHROMIUMENABLEFEATURE_DEV_INTERFACE);
-  }
-  if (!g_gles2_chromium_map_sub_interface) {
-    g_gles2_chromium_map_sub_interface =
-        get_browser_interface(PPB_OPENGLES2_CHROMIUMMAPSUB_DEV_INTERFACE);
-  }
   return g_gles2_interface ? GL_TRUE : GL_FALSE;
 }
 
@@ -87,27 +55,3 @@
   return g_gles2_interface;
 }
 
-const struct PPB_OpenGLES2InstancedArrays_Dev* GL_APIENTRY
-    glGetInstancedArraysInterfacePPAPI() {
-  return g_gles2_instanced_arrays_interface;
-}
-
-const struct PPB_OpenGLES2FramebufferBlit_Dev* GL_APIENTRY
-    glGetFramebufferBlitInterfacePPAPI() {
-  return g_gles2_framebuffer_blit_interface;
-}
-
-const struct PPB_OpenGLES2FramebufferMultisample_Dev* GL_APIENTRY
-    glGetFramebufferMultisampleInterfacePPAPI() {
-  return g_gles2_framebuffer_multisample_interface;
-}
-
-const struct PPB_OpenGLES2ChromiumEnableFeature_Dev* GL_APIENTRY
-    glGetChromiumEnableFeatureInterfacePPAPI() {
-  return g_gles2_chromium_enable_feature_interface;
-}
-
-const struct PPB_OpenGLES2ChromiumMapSub_Dev* GL_APIENTRY
-    glGetChromiumMapSubInterfacePPAPI() {
-  return g_gles2_chromium_map_sub_interface;
-}