pepper: parse context creation attrib list on the plugin side

ppapi/proxy/ppb_graphics_3d_proxy.h

 // 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.
 
 #ifndef PPAPI_PROXY_PPB_GRAPHICS_3D_PROXY_H_
 #define PPAPI_PROXY_PPB_GRAPHICS_3D_PROXY_H_
 
 #include <stdint.h>
 
 #include <vector>
 
 #include "base/macros.h"
 #include "gpu/command_buffer/common/command_buffer.h"
 #include "gpu/command_buffer/common/command_buffer_id.h"
 #include "ppapi/c/pp_graphics_3d.h"
 #include "ppapi/c/pp_instance.h"
 #include "ppapi/proxy/interface_proxy.h"
 #include "ppapi/proxy/ppapi_proxy_export.h"
 #include "ppapi/proxy/proxy_completion_callback_factory.h"
 #include "ppapi/shared_impl/ppb_graphics_3d_shared.h"
 #include "ppapi/shared_impl/resource.h"
 #include "ppapi/utility/completion_callback_factory.h"
 
 namespace gpu {
+namespace gles2 {
+struct ContextCreationAttribHelper;
+}
 struct Capabilities;
 }
 
 namespace ppapi {
 
 class HostResource;
 
 namespace proxy {
 
 class SerializedHandle;
@@ skipping 46 matching lines @@
       const int32_t* attrib_list);
 
   // InterfaceProxy implementation.
   bool OnMessageReceived(const IPC::Message& msg) override;
 
   static const ApiID kApiID = API_ID_PPB_GRAPHICS_3D;
 
  private:
   void OnMsgCreate(PP_Instance instance,
                    HostResource share_context,
-                   const std::vector<int32_t>& attribs,
+                   const gpu::gles2::ContextCreationAttribHelper& attrib_helper,
                    HostResource* result,
                    gpu::Capabilities* capabilities,
                    SerializedHandle* handle,
                    gpu::CommandBufferId* command_buffer_id);
   void OnMsgSetGetBuffer(const HostResource& context, int32_t id);
   void OnMsgWaitForTokenInRange(const HostResource& context,
                                 int32_t start,
                                 int32_t end,
                                 gpu::CommandBuffer::State* state,
                                 bool* success);
@@ skipping 25 matching lines @@
   ProxyCompletionCallbackFactory<PPB_Graphics3D_Proxy> callback_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(PPB_Graphics3D_Proxy);
 };
 
 }  // namespace proxy
 }  // namespace ppapi
 
 #endif  // PPAPI_PROXY_PPB_GRAPHICS_3D_PROXY_H_