Revert "Add driver bug workarounds to GrCaps"

This reverts commit 328490c6a1625ce51d0e81688e0c85c79c400d86.

Reason for revert: Breaking compiles inside chrome

Original change's description:
> Add driver bug workarounds to GrCaps
> 
> This moves GrDriverBugWorkarounds to include so that it can be included
> by GrCaps.  This also makes GrContextOptions a nearly empty class in
> the case of !SK_SUPPORT_GPU so that non-gpu builds don't need to build
> in GrDriverBugWorkarounds.cpp.
> 
> Bug: chromium: 829614
> Change-Id: Iedf73677fd09e9a487cfe618a696fd4b25c8703d
> Reviewed-on: https://skia-review.googlesource.com/126581
> Reviewed-by: Brian Salomon <bsalomon@google.com>
> Commit-Queue: Adrienne Walker <enne@chromium.org>

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

Change-Id: I3b35bf65a7b78d2fe16d7c2bcd0e4b3f9bb7fdff
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: chromium: 829614
Reviewed-on: https://skia-review.googlesource.com/127303
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Greg Daniel <egdaniel@google.com>

4 files changed, 57 insertions, 13 deletions

diff --git a/src/gpu/GrCaps.cpp b/src/gpu/GrCaps.cpp
index 42d3d4c51a..0507a3fdfb 100644
--- a/src/gpu/GrCaps.cpp
+++ b/src/gpu/GrCaps.cpp
@@ -94,8 +94,6 @@ GrCaps::GrCaps(const GrContextOptions& options) {
     fAvoidStencilBuffers = false;
 
     fPreferVRAMUseOverFlushes = true;
-
-    fDriverBugWorkarounds = options.fDriverBugWorkarounds;
 }
 
 void GrCaps::applyOptionsOverrides(const GrContextOptions& options) {
@@ -125,8 +123,6 @@ void GrCaps::applyOptionsOverrides(const GrContextOptions& options) {
         fMaxWindowRectangles = GrWindowRectangles::kMaxWindows;
     }
     fAvoidStencilBuffers = options.fAvoidStencilBuffers;
-
-    fDriverBugWorkarounds.applyOverrides(options.fDriverBugWorkarounds);
 }
 
 static SkString map_flags_to_string(uint32_t flags) {
diff --git a/src/gpu/GrDriverBugWorkarounds.cpp b/src/gpu/GrDriverBugWorkarounds.cpp
index a1f27a3205..5ed9d8d2ef 100644
--- a/src/gpu/GrDriverBugWorkarounds.cpp
+++ b/src/gpu/GrDriverBugWorkarounds.cpp
@@ -29,13 +29,4 @@ GrDriverBugWorkarounds::GrDriverBugWorkarounds(
     }
 }
 
-void GrDriverBugWorkarounds::applyOverrides(
-        const GrDriverBugWorkarounds& workarounds) {
-#define GPU_OP(type, name) \
-    name |= workarounds.name;
-
-    GPU_DRIVER_BUG_WORKAROUNDS(GPU_OP)
-#undef GPU_OP
-}
-
 GrDriverBugWorkarounds::~GrDriverBugWorkarounds() = default;
diff --git a/src/gpu/GrDriverBugWorkarounds.h b/src/gpu/GrDriverBugWorkarounds.h
new file mode 100644
index 0000000000..bca5dc99f1
--- /dev/null
+++ b/src/gpu/GrDriverBugWorkarounds.h
@@ -0,0 +1,44 @@
+/*
+ * Copyright 2018 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef GrDriverBugWorkarounds_DEFINED
+#define GrDriverBugWorkarounds_DEFINED
+
+// External embedders of Skia can override this to use their own list
+// of workaround names.
+#ifdef SK_GPU_WORKAROUNDS_HEADER
+#include SK_GPU_WORKAROUNDS_HEADER
+#else
+// To regenerate this file, set gn arg "skia_generate_workarounds = true".
+// This is not rebuilt by default to avoid embedders having to have extra
+// build steps.
+#include "GrDriverBugWorkaroundsAutogen.h"
+#endif
+
+#include <stdint.h>
+#include <vector>
+
+enum GrDriverBugWorkaroundType {
+#define GPU_OP(type, name) type,
+  GPU_DRIVER_BUG_WORKAROUNDS(GPU_OP)
+#undef GPU_OP
+  NUMBER_OF_GPU_DRIVER_BUG_WORKAROUND_TYPES
+};
+
+class GrDriverBugWorkarounds {
+ public:
+  GrDriverBugWorkarounds();
+  explicit GrDriverBugWorkarounds(const std::vector<int32_t>& workarounds);
+
+  ~GrDriverBugWorkarounds();
+
+#define GPU_OP(type, name) bool name = false;
+  GPU_DRIVER_BUG_WORKAROUNDS(GPU_OP)
+#undef GPU_OP
+};
+
+#endif
diff --git a/src/gpu/GrDriverBugWorkaroundsAutogen.h b/src/gpu/GrDriverBugWorkaroundsAutogen.h
new file mode 100644
index 0000000000..87aa46172e
--- /dev/null
+++ b/src/gpu/GrDriverBugWorkaroundsAutogen.h
@@ -0,0 +1,13 @@
+// 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.
+
+// This file is auto-generated from build_workaround_header.py
+// DO NOT EDIT!
+
+#define GPU_DRIVER_BUG_WORKAROUNDS(GPU_OP)\
+  GPU_OP(AVOID_STENCIL_BUFFERS,       \
+         avoid_stencil_buffers)       \
+  GPU_OP(CLEAR_TO_ZERO_OR_ONE_BROKEN, \
+         clear_to_zero_or_one_broken) \
+// The End