Revert "Add stub gpu workaround generators"

This reverts commit 94d25b970b97c68ddd0b4ceb71f2233aac05e6b5.

Reason for revert: Breaking the Chromium roll

Original change's description:
> Add stub gpu workaround generators
> 
> Like https://chromium-review.googlesource.com/c/chromium/src/+/1005362,
> this patch adds a way for Chrome and Skia to share a set of driver
> workaround names so that they can be turned on by Chrome (or Skia) as
> needed.
> 
> To avoid weird cross-repository dependencies, the generator script is
> duplicated in Skia.
> 
> This patch just adds a few dummy workaround names to make sure the build
> process is working.  The followup to this is to add workaround init
> to GrContext/GrContextOptions and to start implementing individual
> workarounds.
> 
> Implementing these workarounds is to support Chrome's "out of process
> raster" which will use Ganesh without a command buffer, and so will not
> have the workarounds that the command buffer provides.
> 
> Bug: chromium:829614
> Change-Id: I40745a777a95805995991fedb81657ae418b52d9
> Reviewed-on: https://skia-review.googlesource.com/120608
> Reviewed-by: Brian Salomon <bsalomon@google.com>
> Commit-Queue: Adrienne Walker <enne@chromium.org>

TBR=bsalomon@google.com,enne@chromium.org

Change-Id: Ie0b69d7d028dabca1fd70813b6920386c8838247
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: chromium:829614
Reviewed-on: https://skia-review.googlesource.com/122240
Reviewed-by: Leon Scroggins <scroggo@google.com>
Commit-Queue: Leon Scroggins <scroggo@google.com>

1 files changed, 0 insertions, 69 deletions

diff --git a/tools/build_workaround_header.py b/tools/build_workaround_header.py
deleted file mode 100755
index b8558326ad..0000000000
--- a/tools/build_workaround_header.py
+++ /dev/null
@@ -1,69 +0,0 @@
-#!/usr/bin/env python
-# Copyright (c) 2018 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.
-"""code generator for gpu workaround definitions"""
-
-import os
-import os.path
-import sys
-from optparse import OptionParser
-
-_LICENSE = """// Copyright 2018 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.
-
-"""
-
-_DO_NOT_EDIT_WARNING = ("// This file is auto-generated from\n" +
-  "//    " + __file__ + "\n" +
-  "// DO NOT EDIT!\n\n")
-
-def merge_files_into_workarounds(files):
-  workarounds = set()
-  for filename in files:
-    with open(filename, 'r') as f:
-      workarounds.update([workaround.strip() for workaround in f])
-  return sorted(list(workarounds))
-
-
-def write_header(filename, workarounds):
-  max_workaround_len = len(max(workarounds, key=len))
-
-  with open(filename, 'w') as f:
-    f.write(_LICENSE)
-    f.write(_DO_NOT_EDIT_WARNING)
-
-    indent = '  '
-    macro = 'GPU_OP'
-
-    # length of max string passed to write + 1
-    max_len = len(indent) + len(macro) + 1 + max_workaround_len + 1 + 1
-    write = lambda line: f.write(line + ' ' * (max_len - len(line)) + '\\\n')
-
-    write('#define GPU_DRIVER_BUG_WORKAROUNDS(GPU_OP)')
-    for w in workarounds:
-      write(indent + macro + '(' + w.upper() + ',')
-      write(indent + ' ' * (len(macro) + 1) + w + ')')
-
-    # one extra line to consume the the last \
-    f.write('// The End\n')
-
-
-def main(argv):
-  usage = "usage: %prog [options] file1 file2 file3 etc"
-  parser = OptionParser(usage=usage)
-  parser.add_option(
-      "--output-file",
-      dest="output_file",
-      default="gpu_driver_bug_workaround_autogen.h",
-      help="the name of the header file to write")
-
-  (options, _) = parser.parse_args(args=argv)
-
-  workarounds = merge_files_into_workarounds(parser.largs)
-  write_header(options.output_file, workarounds)
-
-
-if __name__ == '__main__':
-  sys.exit(main(sys.argv[1:]))