Make PPB_GLESChromiumTextureMapping_Dev work with PPB_Graphics3D_Dev

ppapi/shared_impl/graphics_3d_impl.cc

 // 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.
 
 #include "ppapi/shared_impl/graphics_3d_impl.h"
 
 #include "base/logging.h"
 #include "gpu/command_buffer/client/gles2_cmd_helper.h"
 #include "gpu/command_buffer/client/gles2_implementation.h"
 #include "ppapi/c/pp_errors.h"
@@ skipping 40 matching lines @@
 
   if (HasPendingSwap()) {
     // Already a pending SwapBuffers that hasn't returned yet.
     return PP_ERROR_INPROGRESS;
   }
 
   swap_callback_ = callback;
   return DoSwapBuffers();
 }
 
+void* Graphics3DImpl::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 Graphics3DImpl::UnmapTexSubImage2DCHROMIUM(const void* mem) {
+  gles2_impl_->UnmapTexSubImage2DCHROMIUM(mem);
+}
+
 void Graphics3DImpl::SwapBuffersACK(int32_t pp_error) {
   DCHECK(HasPendingSwap());
   PP_RunAndClearCompletionCallback(&swap_callback_, pp_error);
 }
 
 bool Graphics3DImpl::CreateGLES2Impl(int32 command_buffer_size,
                                      int32 transfer_buffer_size) {
   gpu::CommandBuffer* command_buffer = GetCommandBuffer();
   DCHECK(command_buffer);
 
@@ skipping 35 matching lines @@
     DCHECK(command_buffer);
     command_buffer->DestroyTransferBuffer(transfer_buffer_id_);
     transfer_buffer_id_ = -1;
   }
 
   gles2_helper_.reset();
 }
 
 }  // namespace ppapi