Add GL_EXT_unpack_subimage support to command buffer client code.

gpu/command_buffer/service/texture_manager.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 "gpu/command_buffer/service/texture_manager.h"
 #include "base/bits.h"
 #include "base/debug/trace_event.h"
 #include "gpu/command_buffer/common/gles2_cmd_utils.h"
 #include "gpu/command_buffer/service/feature_info.h"
 #include "gpu/command_buffer/service/gles2_cmd_decoder.h"
@@ skipping 247 matching lines @@
   info.level = level;
   info.internal_format = internal_format;
   info.width = width;
   info.height = height;
   info.depth = depth;
   info.border = border;
   info.format = format;
   info.type = type;
 
   estimated_size_ -= info.estimated_size;
-  GLES2Util::ComputeImageDataSize(
-      width, height, format, type, 4, &info.estimated_size);
+  GLES2Util::ComputeImageDataSizes(
+      width, height, format, type, 4, &info.estimated_size, NULL, NULL);
   estimated_size_ += info.estimated_size;
 
   if (!info.cleared) {
     DCHECK_NE(0, num_uncleared_mips_);
     --num_uncleared_mips_;
   }
   info.cleared = cleared;
   if (!info.cleared) {
     ++num_uncleared_mips_;
   }
@@ skipping 629 matching lines @@
 GLsizei TextureManager::ComputeMipMapCount(
     GLsizei width, GLsizei height, GLsizei depth) {
   return 1 + base::bits::Log2Floor(std::max(std::max(width, height), depth));
 }
 
 
 }  // namespace gles2
 }  // namespace gpu