Added command buffer implementation of WebGL which runs in the sandbox....

chrome/renderer/ggl/ggl.cc

 // Copyright (c) 2010 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 "build/build_config.h"
 
 #include "base/ref_counted.h"
 #include "base/singleton.h"
 #include "base/thread_local.h"
 #include "chrome/renderer/command_buffer_proxy.h"
 #include "chrome/renderer/ggl/ggl.h"
 #include "chrome/renderer/gpu_channel_host.h"
 #include "chrome/renderer/render_widget.h"
 #include "ipc/ipc_channel_handle.h"
 
 #if defined(ENABLE_GPU)
 #include "gpu/command_buffer/client/gles2_cmd_helper.h"
 #include "gpu/command_buffer/client/gles2_implementation.h"
 #include "gpu/command_buffer/client/gles2_lib.h"
 #include "gpu/command_buffer/common/constants.h"
 #endif  // ENABLE_GPU
 
 namespace ggl {
 
 #if defined(ENABLE_GPU)
 
 namespace {
 
 const int32 kCommandBufferSize = 1024 * 1024;
+// TODO(kbr): make the transfer buffer size configurable via context
+// creation attributes.
 const int32 kTransferBufferSize = 1024 * 1024;
 
 base::ThreadLocalPointer<Context> g_current_context;
 
 // Singleton used to initialize and terminate the gles2 library.
 class GLES2Initializer {
  public:
   GLES2Initializer() {
     gles2::Initialize();
   }
@@ skipping 296 matching lines @@
   if (!context)
     return BAD_CONTEXT;
 
   return context->GetError();
 #else
   return NOT_INITIALIZED;
 #endif
 }
 
 }  // namespace ggl