Implementing FlushMappedBufferRange in GPU command buffer.

gpu/command_buffer/service/gles2_cmd_decoder_autogen.h

 // Copyright 2014 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 is auto-generated from
 // gpu/command_buffer/build_gles2_cmd_buffer.py
 // It's formatted by clang-format using chromium coding style:
 //    clang-format -i -style=chromium filename
 // DO NOT EDIT!
 
@@ skipping 4969 matching lines @@
   }
   if (!validators_->get_max_index_type.IsValid(type)) {
     LOCAL_SET_GL_ERROR_INVALID_ENUM("glGetMaxValueInBufferCHROMIUM", type,
                                     "type");
     return error::kNoError;
   }
   *result_dst = DoGetMaxValueInBufferCHROMIUM(buffer_id, count, type, offset);
   return error::kNoError;
 }
 
+error::Error GLES2DecoderImpl::HandleFlushMappedBufferRange(
+    uint32_t immediate_data_size,
+    const void* cmd_data) {
+  if (!unsafe_es3_apis_enabled())
+    return error::kUnknownCommand;
+  const gles2::cmds::FlushMappedBufferRange& c =
+      *static_cast<const gles2::cmds::FlushMappedBufferRange*>(cmd_data);
+  (void)c;
+  GLenum target = static_cast<GLenum>(c.target);
+  GLintptr offset = static_cast<GLintptr>(c.offset);
+  GLsizeiptr size = static_cast<GLsizeiptr>(c.size);
+  if (!validators_->buffer_target.IsValid(target)) {
+    LOCAL_SET_GL_ERROR_INVALID_ENUM("glFlushMappedBufferRange", target,
+                                    "target");
+    return error::kNoError;
+  }
+  if (size < 0) {
+    LOCAL_SET_GL_ERROR(GL_INVALID_VALUE, "glFlushMappedBufferRange",
+                       "size < 0");
+    return error::kNoError;
+  }
+  DoFlushMappedBufferRange(target, offset, size);
+  return error::kNoError;
+}
+
 error::Error GLES2DecoderImpl::HandleCopyTextureCHROMIUM(
     uint32_t immediate_data_size,
     const void* cmd_data) {
   const gles2::cmds::CopyTextureCHROMIUM& c =
       *static_cast<const gles2::cmds::CopyTextureCHROMIUM*>(cmd_data);
   (void)c;
   GLenum source_id = static_cast<GLenum>(c.source_id);
   GLenum dest_id = static_cast<GLenum>(c.dest_id);
   GLint internalformat = static_cast<GLint>(c.internalformat);
   GLenum dest_type = static_cast<GLenum>(c.dest_type);
@@ skipping 624 matching lines @@
         state_.enable_flags.cached_sample_alpha_to_one_ext = enabled;
         return true;
       }
       return false;
     default:
       NOTREACHED();
       return false;
   }
 }
 #endif  // GPU_COMMAND_BUFFER_SERVICE_GLES2_CMD_DECODER_AUTOGEN_H_