Revert of Compute GpuDriverBugWorkarounds only one time in the GPU process

gpu/config/gpu_driver_bug_workarounds.cc

Index: gpu/config/gpu_driver_bug_workarounds.cc
diff --git a/gpu/config/gpu_driver_bug_workarounds.cc b/gpu/config/gpu_driver_bug_workarounds.cc
deleted file mode 100644
index f9bf4c38c17c0ceb347e11c0fd910a8f3f5739db..0000000000000000000000000000000000000000
--- a/gpu/config/gpu_driver_bug_workarounds.cc
+++ /dev/null
@@ -1,98 +0,0 @@
-// Copyright 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.
-
-#include "gpu/config/gpu_driver_bug_workarounds.h"
-
-#include "base/command_line.h"
-#include "base/strings/string_number_conversions.h"
-#include "base/strings/string_split.h"
-#include "gpu/config/gpu_switches.h"
-
-namespace {
-// Process a string of wordaround type IDs (seperated by ',') and set up
-// the corresponding Workaround flags.
-void StringToWorkarounds(const std::string& types,
-                         gpu::GpuDriverBugWorkarounds* workarounds) {
-  DCHECK(workarounds);
-  for (const base::StringPiece& piece : base::SplitStringPiece(
-           types, ",", base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL)) {
-    int number = 0;
-    bool succeed = base::StringToInt(piece, &number);
-    DCHECK(succeed);
-    switch (number) {
-#define GPU_OP(type, name)    \
-  case gpu::type:             \
-    workarounds->name = true; \
-    break;
-      GPU_DRIVER_BUG_WORKAROUNDS(GPU_OP)
-#undef GPU_OP
-      default:
-        NOTIMPLEMENTED();
-    }
-  }
-  if (workarounds->max_texture_size_limit_4096)
-    workarounds->max_texture_size = 4096;
-  if (workarounds->max_cube_map_texture_size_limit_4096)
-    workarounds->max_cube_map_texture_size = 4096;
-  if (workarounds->max_cube_map_texture_size_limit_1024)
-    workarounds->max_cube_map_texture_size = 1024;
-  if (workarounds->max_cube_map_texture_size_limit_512)
-    workarounds->max_cube_map_texture_size = 512;
-
-  if (workarounds->max_fragment_uniform_vectors_32)
-    workarounds->max_fragment_uniform_vectors = 32;
-  if (workarounds->max_varying_vectors_16)
-    workarounds->max_varying_vectors = 16;
-  if (workarounds->max_vertex_uniform_vectors_256)
-    workarounds->max_vertex_uniform_vectors = 256;
-
-  if (workarounds->max_copy_texture_chromium_size_1048576)
-    workarounds->max_copy_texture_chromium_size = 1048576;
-  if (workarounds->max_copy_texture_chromium_size_262144)
-    workarounds->max_copy_texture_chromium_size = 262144;
-}
-
-}  // anonymous namespace
-
-namespace gpu {
-
-GpuDriverBugWorkarounds::GpuDriverBugWorkarounds()
-    :
-#define GPU_OP(type, name) name(false),
-      GPU_DRIVER_BUG_WORKAROUNDS(GPU_OP)
-#undef GPU_OP
-          max_texture_size(0),
-      max_cube_map_texture_size(0),
-      max_fragment_uniform_vectors(0),
-      max_varying_vectors(0),
-      max_vertex_uniform_vectors(0),
-      max_copy_texture_chromium_size(0) {
-}
-
-GpuDriverBugWorkarounds::GpuDriverBugWorkarounds(
-    const base::CommandLine* command_line)
-    :
-#define GPU_OP(type, name) name(false),
-      GPU_DRIVER_BUG_WORKAROUNDS(GPU_OP)
-#undef GPU_OP
-          max_texture_size(0),
-      max_cube_map_texture_size(0),
-      max_fragment_uniform_vectors(0),
-      max_varying_vectors(0),
-      max_vertex_uniform_vectors(0),
-      max_copy_texture_chromium_size(0) {
-  if (!command_line)
-    return;
-
-  std::string types =
-      command_line->GetSwitchValueASCII(switches::kGpuDriverBugWorkarounds);
-  StringToWorkarounds(types, this);
-}
-
-GpuDriverBugWorkarounds::GpuDriverBugWorkarounds(
-    const GpuDriverBugWorkarounds& other) = default;
-
-GpuDriverBugWorkarounds::~GpuDriverBugWorkarounds() {}
-
-}  // namespace gpu