Add workaround for Mac stencil buffer leak

gpu/skia_bindings/grcontext_for_gles2_interface.cc

 // Copyright (c) 2013 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/skia_bindings/grcontext_for_gles2_interface.h"
 
 #include <stddef.h>
 #include <string.h>
 #include <utility>
 
 #include "base/lazy_instance.h"
 #include "base/macros.h"
 #include "base/sys_info.h"
 #include "base/trace_event/trace_event.h"
 #include "gpu/command_buffer/client/gles2_interface.h"
+#include "gpu/command_buffer/common/capabilities.h"
 #include "gpu/skia_bindings/gl_bindings_skia_cmd_buffer.h"
 #include "third_party/skia/include/gpu/GrContext.h"
 #include "third_party/skia/include/gpu/GrContextOptions.h"
 #include "third_party/skia/include/gpu/gl/GrGLInterface.h"
 
 namespace skia_bindings {
 
 GrContextForGLES2Interface::GrContextForGLES2Interface(
-    gpu::gles2::GLES2Interface* gl) {
+    gpu::gles2::GLES2Interface* gl,
+    const gpu::Capabilities& capabilities) {
   // Calculate limits to pass during initialization:
   // The limit of the number of GPU resources we hold in the GrContext's
   // GPU cache.
   static const int kMaxGaneshResourceCacheCount = 16384;
   // The limit of the bytes allocated toward GPU resources in the GrContext's
   // GPU cache.
   static const size_t kMaxLowEndGaneshResourceCacheBytes = 48 * 1024 * 1024;
   static const size_t kMaxGaneshResourceCacheBytes = 96 * 1024 * 1024;
   static const size_t kMaxHighEndGaneshResourceCacheBytes = 256 * 1024 * 1024;
   // Limits for glyph cache textures.
   static const size_t kMaxDefaultGlyphCacheTextureBytes = 2048 * 1024 * 4;
   static const size_t kMaxLowEndGlyphCacheTextureBytes = 1024 * 512 * 4;
   // High-end / low-end memory cutoffs.
   static const int64_t kHighEndMemoryThreshold = (int64_t)4096 * 1024 * 1024;
   static const int64_t kLowEndMemoryThreshold = (int64_t)512 * 1024 * 1024;
 
   size_t max_ganesh_resource_cache_bytes = kMaxGaneshResourceCacheBytes;
   int max_glyph_cache_texture_bytes = kMaxDefaultGlyphCacheTextureBytes;
   if (base::SysInfo::AmountOfPhysicalMemory() <= kLowEndMemoryThreshold) {
     max_ganesh_resource_cache_bytes = kMaxLowEndGaneshResourceCacheBytes;
     max_glyph_cache_texture_bytes = kMaxLowEndGlyphCacheTextureBytes;
   } else if (base::SysInfo::AmountOfPhysicalMemory() >=
              kHighEndMemoryThreshold) {
     max_ganesh_resource_cache_bytes = kMaxHighEndGaneshResourceCacheBytes;
   }
 
   GrContextOptions options;
   options.fGlyphCacheTextureMaximumBytes = max_glyph_cache_texture_bytes;
+  options.fAvoidStencilBuffers = capabilities.avoid_stencil_buffers;
   sk_sp<GrGLInterface> interface(
       skia_bindings::CreateGLES2InterfaceBindings(gl));
   gr_context_ = sk_sp<GrContext>(GrContext::Create(
       kOpenGL_GrBackend,
       // GrContext takes ownership of |interface|.
       reinterpret_cast<GrBackendContext>(interface.get()), options));
   if (gr_context_) {
     gr_context_->setResourceCacheLimits(kMaxGaneshResourceCacheCount,
                                         max_ganesh_resource_cache_bytes);
   }
@@ skipping 18 matching lines @@
 
 void GrContextForGLES2Interface::FreeGpuResources() {
   if (gr_context_) {
     TRACE_EVENT_INSTANT0("gpu", "GrContext::freeGpuResources",
                          TRACE_EVENT_SCOPE_THREAD);
     gr_context_->freeGpuResources();
   }
 }
 
 }  // namespace skia_bindings