Make command buffer commands and immediate data volatile

gpu/command_buffer/service/gles2_cmd_decoder_passthrough.h

 // Copyright (c) 2016 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.
 
 // This file contains the GLES2DecoderPassthroughImpl class.
 
 #ifndef GPU_COMMAND_BUFFER_SERVICE_GLES2_CMD_DECODER_PASSTHROUGH_H_
 #define GPU_COMMAND_BUFFER_SERVICE_GLES2_CMD_DECODER_PASSTHROUGH_H_
 
 #include "base/memory/ref_counted.h"
@@ skipping 14 matching lines @@
 namespace gles2 {
 
 class ContextGroup;
 
 class GLES2DecoderPassthroughImpl : public GLES2Decoder {
  public:
   explicit GLES2DecoderPassthroughImpl(ContextGroup* group);
   ~GLES2DecoderPassthroughImpl() override;
 
   Error DoCommands(unsigned int num_commands,
-                   const void* buffer,
+                   const volatile void* buffer,
                    int num_entries,
                    int* entries_processed) override;
 
   const char* GetCommandName(unsigned int command_id) const override;
 
   bool Initialize(const scoped_refptr<gl::GLSurface>& surface,
                   const scoped_refptr<gl::GLContext>& context,
                   bool offscreen,
                   const DisallowedFeatures& disallowed_features,
                   const ContextCreationAttribHelper& attrib_helper) override;
@@ skipping 164 matching lines @@
   const ContextState* GetContextState() override;
   scoped_refptr<ShaderTranslatorInterface> GetTranslator(GLenum type) override;
 
  private:
   int commands_to_process_;
 
   DebugMarkerManager debug_marker_manager_;
   Logger logger_;
 
 #define GLES2_CMD_OP(name) \
-  Error Handle##name(uint32_t immediate_data_size, const void* data);
+  Error Handle##name(uint32_t immediate_data_size, const volatile void* data);
 
   GLES2_COMMAND_LIST(GLES2_CMD_OP)
 #undef GLES2_CMD_OP
 
   using CmdHandler =
       Error (GLES2DecoderPassthroughImpl::*)(uint32_t immediate_data_size,
-                                             const void* data);
+                                             const volatile void* data);
 
   // A struct to hold info about each command.
   struct CommandInfo {
     CmdHandler cmd_handler;
     uint8_t arg_flags;   // How to handle the arguments for this scommand
     uint8_t cmd_flags;   // How to handle this command
     uint16_t arg_count;  // How many arguments are expected for this command.
   };
 
   // A table of CommandInfo for all the commands.
@@ skipping 12 matching lines @@
 
 // Include the prototypes of all the doer functions from a separate header to
 // keep this file clean.
 #include "gpu/command_buffer/service/gles2_cmd_decoder_passthrough_doer_prototypes.h"
 };
 
 }  // namespace gles2
 }  // namespace gpu
 
 #endif  // GPU_COMMAND_BUFFER_SERVICE_GLES2_CMD_DECODER_PASSTHROUGH_H_