Revert 123696 - Add Pepper support for several GL extensions

ppapi/shared_impl/ppb_graphics_3d_shared.cc

 // 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 "ppapi/shared_impl/ppb_graphics_3d_shared.h"
 
 #include "base/logging.h"
 #include "gpu/command_buffer/client/gles2_cmd_helper.h"
 #include "gpu/command_buffer/client/gles2_implementation.h"
 #include "gpu/command_buffer/client/transfer_buffer.h"
@@ skipping 53 matching lines @@
 
   if (HasPendingSwap()) {
     // Already a pending SwapBuffers that hasn't returned yet.
     return PP_ERROR_INPROGRESS;
   }
 
   swap_callback_ = new TrackedCallback(this, callback);
   return DoSwapBuffers();
 }
 
+void* PPB_Graphics3D_Shared::MapTexSubImage2DCHROMIUM(GLenum target,
+                                                      GLint level,
+                                                      GLint xoffset,
+                                                      GLint yoffset,
+                                                      GLsizei width,
+                                                      GLsizei height,
+                                                      GLenum format,
+                                                      GLenum type,
+                                                      GLenum access) {
+  return gles2_impl_->MapTexSubImage2DCHROMIUM(
+      target, level, xoffset, yoffset, width, height, format, type, access);
+}
+
+void PPB_Graphics3D_Shared::UnmapTexSubImage2DCHROMIUM(const void* mem) {
+  gles2_impl_->UnmapTexSubImage2DCHROMIUM(mem);
+}
+
 void PPB_Graphics3D_Shared::SwapBuffersACK(int32_t pp_error) {
   DCHECK(HasPendingSwap());
   TrackedCallback::ClearAndRun(&swap_callback_, pp_error);
 }
 
 bool PPB_Graphics3D_Shared::HasPendingSwap() const {
   return TrackedCallback::IsPending(swap_callback_);
 }
 
 bool PPB_Graphics3D_Shared::CreateGLES2Impl(int32 command_buffer_size,
@@ skipping 30 matching lines @@
 }
 
 void PPB_Graphics3D_Shared::DestroyGLES2Impl() {
   gles2_impl_.reset();
   transfer_buffer_.reset();
   gles2_helper_.reset();
 }
 
 }  // namespace ppapi